Jul 14, 2023 · The echo command is one of the most commonly and widely used built-in commands for Linux bash and C shells, that typically used in a scripting language and batch files to display a line of text/string on standard output or a file. The echo command in Bash sends its arguments to the standard output, which by default, is the terminal. This tutorial explains different ways to use the echo command in Linux through various examples. Dec 30, 2015 · 9. Jan 14, 2022 · Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Jul 2, 2019 · 31. That question, as its title suggests, is about the newline at the end of the output from the command (i. output >> filename. E. 50. It is mostly used in shell scripts when developers create a variable and use the variable to print the value on screen using the echo command. Network 10. Mar 18, 2024 · command > /dev/null 2>&1. Note that this shorthand is not portable and is only supported by Bash 4 or higher. The general format for redirecting and writing output to a file is as follows: output > filename. log. Simply use the arithmetic expansion $(( expression )) for such operations: gas=$(( ${result[0]} * 1000)) This allows the evaluation of an arithmetic expression and the substitution of the result. Feb 11, 2016 · done. echo "Echo value to terminal" > /dev/tty. Paste the text you just copied into a X application: xclip -o. So: echo 'Hello' | echo. The following command will display the current date: echo "The date is: $(date +%D)" The date is: 04/17/19; Displaying in color Nov 10, 2023 · Echo is a vital command that allows us to get visible output from shell scripts and can include variables, filenames, and directories. Option Two: Print Output Normally and Redirect It to a File. -e option enables the interpretation of backslash escape sequences inside the strings. Some will even print the "-e" as part of their output. replacing spaces with sed command. Are they available in Unicode? Yes. ssh user@example. 25(1)-release (x86_64-redhat-linux-gnu) I would like to output the URL with a tab - then the 404|200|501|502 response. Example 2: rewrite the following so that all the commands are in a single command-line using pipes, without redirects to a temp file: setopt > /tmp/foo; unsetopt >> /tmp/foo; set >> /tmp/foo; sort /tmp/foo. 4. We can shorten this to the following Bash notation: command &> /dev/null. Shawn. How to achieve two echo statement output to same line in bash. You could pipe your command into a shell so it gets executed: echo "mv " | bash. The set -x or set -o xtrace Option. } Jan 5, 2015 · This solution direct prints to the terminal tty: function test_function {. This is the simplest command to print any output in the bash scripting. To force a new line to be created: echo -e "This is a Linux\n server". You can use up to 42 colors simultaneously, and use a configuration file to simplify command lines. This is echo command example. This guide explores the basics of the echo command, including syntax, options, and practical examples, to improve your command-line proficiency and scripting capabilities. echo a list of strings on command line. See what a command will do without running it. takes the standard output from echo and passes it to the standard input of echo. In many cases, the echo command saves you the trouble of accidentally doing something you didn't expect. Just add: #!/bin/bash. I don't think my interpretation of that text is unreasonable at all. print_message() { echo "message content" } >&2 The difference is immaterial when there is only one line of output but if there are multiple lines of output then the latter is likely to be slightly more optimized (especially when the output stream happens to be a file). If you want to stay flexible (and e. /test. I am using GNU bash, version 3. Variable - Yes; Wildcards - No; Command substitution - yes But there are some restrictions on -e, all explained in bash's manpage; also, if you are asking about echo $(), then it might be because the subshells' exit codes are ignored when the line - the echo command - has an exit code (usually 0) of its own. Nov 27, 2014 · You can also use command substitution to remove the trailing newline: echo -n "$(wc -l < log. ", you might see something like this: you could use echo command with cat as command substitution. B. @AwQiruiGuo $() in bash just replaces itself with the output of the command executed with the braces; so $(pwd) would expand to /home/ubuntu for example, making the assignment the equivalent of: pwd='/home/ubuntu' – Feb 29, 2024 · The command echo $(date) will print the current date and time to the standard output. grub-md5-crypt | grep xy > output. Check if noclobber is set with: set -o | grep noclobber. Jul 26, 2013 · There is no special bash variable for that. $? contains the exit code of the last command (0 = success, >0 = error-code) You can use the output of find with the -exec flag, like this: find -name '*. For a more detailed explanation on this special type of operator, see this post. Then create a file with the extension . The tee command copies what it reads from standard input to one or more files, and also writes the data to its standard output. Dec 11, 2011 · Putting the command betweeen $( and ) or backticks (`) will substitute that expression into the return value of the command. Mar 15, 2022 · I have output from a shell script like below ##### Creation date: 15-03-2022 / 15:03 performed by: user Environment: E_MTE_04 Reference - Repository: TEST -BSL Number of documents: XXX -Syr Number of documents: XXX -DEB Number of documents: XXX Candidate - Repository: TEST -BSL Number of documents: XXX -Syr Number of documents: XXX -DEB Number of documents: XXX Sep 2, 2012 · Two useful shell options that can be added to the bash command line or via the set command in a script or interactive session:-v Print shell input lines as they are read. Whenever you use any special escape sequence like '\n', '\t', or these escape sequences for colors with echo command, please make sure to use the "-e" flag with the echo command. Jul 1, 2016 · If you really want that echo reads from STDIN, you must use xargs, that is, xargs echo < my_file. Jan 10, 2024 · Note: Among these syntax 1st one is common and widely used. 5 seconds timeout: Nov 30, 2017 · Also, grep 'string' &>/dev/null is both non-POSIX compliant and much slower to execute (if string appears early in a long output stream) than grep -q string. Actions can communicate with the runner machine to set environment variables, output values used by other actions, add debug messages to the output logs, and other tasks. For example: Will display: echo has printed 1234 then gone back to the begining of the line and printed 56 over the top of 12. By using !! you tell it to repeat the last command in that spot, along with any other bash commands you want to add to it. echo "Hello World" Mar 17, 2017 · You could pass the -n option to your first echo command, so it doesn't output a newline. This is why when you type echo 'Hello, World!', you see ‘Hello, World!’ printed in your terminal. “echo” Command. – Mar 18, 2024 · echo command in action Generating Output With echo command. x. The problem is that cut cuts the output by single spaces, and as ps adds some spaces between the 2nd and 3rd columns to keep some resemblance of a table, cut picks an empty string. Finally, use the cat command to verify the contents of the "output. Feb 11, 2024 · Follow the below steps to check the entire process: Steps to Follow >. Let’s start with the most basic use of the echo command: displaying static text. 2>&1 redirects channel 2 (stderr/standard error) into channel 1 (stdout/standard output), such that both is written as stdout. For most uses, printf is preferable. Aug 6, 2021 · The most basic approach is to duplicate the command line in the script and then dump it into the log followed by the captured output of the actual command being run: echo "command argument1 \"quoted argument2\" | grep -oE \"some output\"" >> file. For a new line, try \n instead. As a quick demonstration, this : echo "test : " ; echo "blah" will get you : test : blah With a newline between the two outputs. It is also directed to the given output file as of the tee command. A Bash Command might have different options and arguments. For multi-line output, this would not prepend space properly, e. Setting Command With Formatting. Mar 27, 2017 · Option One: Redirect Output to a File Only. desired output: aaa. Printing the exact commands in a script before execution can be really useful. echo last command. com set +x # stop debugging from here. this other I didn't understand that! My dry run goes this way : echo this || echo that && echo other implies true || true && true; Since, && has more precedence than ||, the second expression evaluates first Apr 1, 2016 · Here are some explanations about it:. To output any string or number or text on the terminal, type the following command and press enter. The downside is that if the command you are repeating takes a long time to execute, you'll have that much longer to wait unless you stored the output of the previous command Feb 7, 2021 · This leads us to a Bash script that can silence other Bash scripts, except echos in them: #!/bin/bash echo() ( >&3 command echo "$@" ) export -f echo exec 3>&1 >/dev/null "$@" Save it as silence somewhere in PATH, make it executable. After that, piped the tee command with the echo command to write the same text to a file called "output. Now it will prints out "Hello". Furthermore, if you want to append to the log Jun 12, 2021 · Concatenate other command output with echo in bash. For example: Nov 16, 2022 · echo in standard usage a line of text is entered and displayed in standard output: bash. txt | sed 's/:. It must be in the first line of your file! This means your script will be using bash interpreter other than normal shell's one ( /bin/sh ). The command is usually used in a bash shell or other shells to print the output from a command. This would execute the command for every found file. The logic is fine, but I am stuck on "simply" printing out the "output". Generally: a | b. xx. , at the end of the last line). The cat <<EOF syntax is very useful when working with multi-line text in Bash, eg. Dec 1, 2023 · How the Echo Command Interacts with Standard Output. or maybe: echo my text | tee file1 file2 > file3. Here is an example of the problem: Example variable: $ f="fafafda > adffd > adfadf > adfafd > afd" Oct 29, 2023 · First, use the echo command to print text on the terminal. It is commonly used in shell scripts and batch files to output status text to the screen or a file. In this tutorial, we’ll learn how to make Bash scripts echo commands before they’re executed. This means what is after the \r will overwrite the beginning of what has already been printed. However, it will replace CR or return (unix: \n) with spaces: $ echo $(cat names. 3. So you can use: echo my text | tee file1 file2 file3 > /dev/null. Dec 11, 2023 · The echo command in Linux is a built-in command which is used to print its arguments to the standard output – typically, your terminal. The output will end up becoming: This is a Linux. txt ) and that would get you only the time output. Steps to Follow >. And this is the wrapper script: #!/bin/sh. The \r is just that, a "carriage return" - nothing else. 2. Apr 13, 2024 · Overview. In your case you could use mapfile to populate the array MAPFILE presuming the file keys contains the un-formatted text. Oct 10, 2013 · The current user's username can be gotten in pure Bash with the ${parameter@operator} parameter expansion (introduced in Bash 4. echo "my errz" > /proc/self/fd/2 will effectively output to stderr because /proc/self is a link to the current process, and /proc/self/fd holds the process opened file descriptors, and then, 0, 1, and 2 stand for stdin, stdout and stderr respectively. The /proc/self link doesn't work on MacOS, however, /proc/self About workflow commands. g. It is used to display text strings or the command results. -n option suppresses the output trailing new line. 1. You might be able to make a set-color function that creates such functions on-demand as well. I suggest you to read the Pipelines section of man bash. Output something simular to the following would give you the required alignment: Network 10. This means that escape characters can be used to insert special characters into the output. Syntax of `echo` command in Linux echo [option] [string] Here, Apr 29, 2024 · There are several ways to print output in Bash. with -x option). To paste somewhere else other than an X application, such as a text area of a web page in a browser window, use: Sep 20, 2019 · 11383 pts/1 00:00:00 bash. " The output of the above command will actually truncate the word right after \c, which means we'll see the following output: This is a Linux. , for a 2. Later on, the variable current_date was used in the echo statement to print the current date. server. It's OK for debugging, but if you want selective output it would be best to do it yourself with carefully places echo commands. The sed command doesn't seem to work: sh: cho: not found a sh: cho: not found Looks like it's taking the e in echo to be a sed command or something. txt) Homer Marge Bart Lisa Maggie Could be an interesting feature if you want to pipe to further data processing though. output="$(command argument1 "quoted argument2" 2>&1 | grep -oE "some output")" Jan 4, 2021 · In Bash, the redirection of output allows you to capture the output from a command and write it to a file. By Arun Kumar February 26, 2024. Oct 25, 2023 · Beginners Guide for Echo Command in Linux. The echo command takes the text or file as an argument and prints the output on the terminal screen. -x After expanding each simple command, for command, case command, select command, or arithmetic for command, display the expanded value of PS4, followed by the command and its expanded arguments or associated word list. Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Jan 13, 2011 · In Bash, if you have set noclobber a la set -o noclobber, then you use the syntax >|. Apr 13, 2022 · According to the Linux documentation, the following is the syntax for echo command. echo this || echo that && echo other This gives the output. sh. If you notice carefully, I used $() around the date command which captured the output of the date command and passed it to the current_date variable. If you really want to use ls and echo together here's some Jul 27, 2015 · print_message() { echo "message content" >&2 } or. Then use it like this: silence /path/to/the_script Notes: Not suppressing errors is achieved by leaving stderr 457. By default this is connected to the terminal screen, but can be redirected by using the > symbol or the program name being on the left side of a pipe. So basically: if [ `echo test` == "test"]; then echo "echo test outputs test on shell" fi or. The output of the command significantly varies based on the usage of those options. If the file exists, it is truncated to zero length. You can do this for specific portions of the file, too (from section 2. { time sleep 1 2> sleepStdErr. Examples of cat <<EOF syntax usage in Bash: 1. It looks like the output is shown on a bottom line. -n Do not output a trailing newline. with your_script: Oct 5, 2017 · 4. Next step: ps | egrep 11383 | cut -d" " -f 4. nano example1. } -- update --. To find out whether a command is a built-in or an external command, we can use type command: $ type echo. txt ; } 2> time. exchange your cat files. This question is about the newlines between the lines of output from the command (i. The $(date) part is an example of command substitution, which is a way to execute a command and replace it with its output. Note that: OPTIONS should be one of the following options. I want this log file to reside in the same directory as the script. txt not an argument, but a path to a file whose content is put within STDIN. txt)" If your expected output may contain multiple lines, you have another decision to make: If you want to remove MULTIPLE newline characters from the end of the file, again use cmd substitution: Mar 27, 2015 · Concatenate other command output with echo in bash. . Use the double quotes when you want only variables and command substitution. Apr 27, 2016 · 0. command you should stay with your invocation of xargs but only do it a file at the time: cat files. Jan 9, 2023 · Sample colored output for your understanding: Echo command output in color \033[ represents ESC[ in the above commands. Bash Script - Piping commands to echo. Now, open a file, let’s say, named ‘ output. Echo command is also used frequently in bash shell scripts. bash. Use echo command to display a line of text or a variable value. wsdl' -exec emacs {} \; The {} is replaced with the file name found by find. The !! on its own executes the last command. Here's what I've got: #!/bin/bash. You can debug the script with -x, which will echo the commands and arguments. Also, it automatically adds a new line character at the end of the Jun 19, 2019 · echo some command here. \u001b. ls -a | tee output. \n option creats a newline from where it is used. He says 'the $7 does not show up in the command', not 'does not show up in the output'. e. . < makes my_file. Jun 10, 2012 · Those man pages are for the system-supplied echo command, /bin/echo, which on Mac OS has no -e option. 2 linked above): set -x # activate debugging from here. ” where I only want to keep indentation of “some long explain. Dec 5, 2020 · echo 'text "hey"' or. But it displays bar meaning the return status code is 0 (this is not the returned status code from false Jan 27, 2015 · 314. , at the ends of lines 1 through n −1). Open the Ubuntu Terminal. xargs runs the command given to it ( echo) with the arguments read from STDIN. kkk. Jul 13, 2022 · echo -e "This is a Linux\c server. For a general command command this looks like: arr=( $(command) ) In the example of the OP, this would read: arr=($(grep -n "search term" file. As Oli suggested, this is a feature of Make and not of Bash. xxx\t: Online. May 5, 2017 · I would try writing functions that echo'd out the color-changing sequences, then ran command the-original-command "$@", then the end-color sequence. \\ backslash. #!/bin/bash. There is no need to use bc nor echo. file. You can see this by explicitly typing /bin/echo whatever and observing the difference in behavior. You can colorize the output of every command that can be piped to another one. echo 'Understanding Bash Echo' # Output: # 'Understanding Bash Echo' 85. Here are some different methods: A. cd ~/Desktop; thefile= ls -t -U | grep -m 1 "Screen Shot"; May 20, 2024 · The echo command is a built-in feature in Linux that prints out its arguments as standard output. When you run a command at the bash prompt, it normally prints the output of that command directly to the terminal so you can read it immediately. The > redirection operator writes the output to a given file. Running the wrapper script produces this as output: echo last command. Using your trick to suppress the output: ( : $(echo foo | tee file ; false) ) && echo bar. – May 10, 2011 · echo -e '\033[2K' # clear the screen and do not move the position or: echo -e '\033[2J\033[u' # clear the screen and reset the position There are a lot of beginners that want to clear the screen with system( "clear" ) so you can use this instead of system(3) call. Aug 27, 2012 · if read -r -n1 -d '' < <(command_here); then echo "Command outputs something" else echo "Command doesn't output anything" fi You may also add some timeout so as to test whether a command outputs a non-empty string within a given time, using read's -t option. The syntax for the echo command is: echo [option(s)] [string(s)] 1. when assigning multi-line string to a shell variable, file or a pipe. Thus, stdout is redirected to /dev/null and stderr is redirected to stdout, causing both streams to be written to /dev/null and silencing all output from our command. If you look closely, you'll see that this question is not a duplicate. String Laxmi is printed after the newline. edited Jan 15, 2023 at 3:03. The set -x option is one of the methods we can use to see what’s going on in Bash scripts. Apr 24, 2023 · The echo command in Linux is a built-in command that allows users to display lines of text or strings that are passed as arguments. @PauloTorrens, this is called process substitution. ” if it spans multi-line. Of course, I could use cut to select the 7th and not the Oct 29, 2022 · You can use the specified colors as a “variable” in the echo command and mention it before any text to make the text appear with said color in the terminal output. Nov 22, 2011 · I have a simple BASH shell script which checks the HTTP response code of a curl command. While this, with a -n for the first echo: echo -n "test : " ; echo "blah" will get you the following output : test : blah 24. Sep 27, 2016 · @CharlesDuffy, the OP wrote 'I am trying to just echo a command', and he is trying to use echo. 3. Output is: <absolutely nothing/>. This operator creates a new file specified in the command if none with the same name exists or overwrites if there is one existing. If your system support the tty command, you could obtain your tty device from the tty command, and thus you may: echo "this prints to the terminal" > `tty`. For example: echo "some text" >| existing_file. There are two versions of echo: one built into the Bash shell and a binary executable version. It is a good command to display a simple output when you know that the variable's contents will not cause problems. But echo does not read stdin! Examples. And then iterate through the array using spaces () to format the columns to the correct width. if [ $(echo test) == "test"]; then echo "echo test outputs test on shell" fi will do the trick. -e Enable interpretation of backslash escapes. The tail -1 command is stripping the unwanted lines generated by the script command. $ echo my name is $(!!) You can save yourself from typing $(your_cmd) by using backticks: `your_cmd` According to the Gnu Bash manual they are functionally identical. echo Command Examples The second, 1, is known as standard output, or stdout. Stack Exchange network consists of 183 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. echo [option(s)][string(s)] Now, we shall see the different ways in which we can output the text on the terminal. Apr 18, 2024 · The Echo command is a built-in command feature for Unix / Linux which is generally used to display the text or message on the screen. spaces () {. xxx\t: Offline. txt. To see the documentation for the built-in, type help echo. -E: It is the default option that disables the implementation of escape sequences. Adding a new line. Feb 26, 2012 · 183. txt" file. To get the filename you want to use echo to get the content you can use cat. for (( a=0; a<(( $2 - $1 )); a++ )); do echo -n " "; done. Aug 12, 2012 · Example 1: combine and sort the output of all three echo commands: echo zzz; echo aaa; echo kkk. Completing noEntry 's answer, you can also save output to a file. bash -x script. Feb 27, 2011 · 929. Pipe the output into xclip to be copied into the clipboard: cat file | xclip. sh 2>&1 | grep '^\+' | tail -n 1 | sed -e 's/^\+ //'. May 31, 2022 · This merely prints \n: $ echo -e "Hello,\nWorld!" Hello,\nWorld! For those saying "it works for me", the behavior of echo varies quite a bit between versions. – Alex Budovski Commented Apr 26, 2010 at 3:40 Sep 1, 2021 · To put this clearly, the following command calls the bash built-in: $ echo <some-text>. My first attempt was, echo "$(date) | blah blah" >> "$(pwd)/script Aug 15, 2009 · It's really easy to understand how this works by doing for example: echo <(echo id), giving the output /dev/fd/12 (12 is an example), cat <(echo id), giving the output id, and then source <(echo id) giving the same output as simply writing id. answered Jul 1, 2019 at 17:27. zzz. Echo command Syntax Let's see an example using command false that always returns 1 (failure). You can use the shortcut keys CTRL+ALT+T to do so. This also works if the file doesn't exist yet. It offers no formatting option. If it doesn't work in your shell script you might want to use bash. $ printf '%s\n' "${_@P}" The : built-in (synonym of true) is used instead of a temporary variable by setting the last argument, which is stored in $_. txt". # function. txt)" printf "%s" "$(wc -l < log. Feb 26, 2024 · The echo command in Linux is a simple yet powerful tool for outputting text to the terminal or redirecting it to files. Oct 29, 2023 · The echo command is a built-in command-line tool that prints the text or string to the standard output or redirect output to a file. Add @ to the beginning of command to tell gmake not to print the command being executed. echo "text \"hey\"" In short: The double quote ( "quote" ) protects everything enclosed between two double quote marks except $, ', " and \. Nov 21, 2015 · 10. First, launch an Ubuntu terminal. One way of doing it follows: Install xclip, such as: sudo apt-get install xclip. If you want predictable behavior for anything nontrivial, use printf instead (as in @sth's answer). 5k 3 26 64. hl is a Linux command written in C, especially designed to color a text file or the output of a command. Feb 29, 2024 · Save Output to a File by Creating or Overwriting a File. Echo something while piping stdout. sh ’ in the nano editor by using the following command: nano output. May 4, 2024 · The output image shows the current directory as expected. [root@fedora ~]# echo "This is echo command example". On the other hand, Bash will never echo commands being executed unless you tell it to do so explicitly (i. Update your script to insert a set number to \t (tabs) where you want to tab out to a column. 4): $ : \\u. Use the $(command) expression to include the command output in the echo’s argument. Beware commands (such as some greps) that may declare their own colors. Echoing the trailing newline is skipped if the ' -n ' option is used: bash. Which version of these colors is Sep 13, 2022 · The echo command is very simple and has the following syntax: echo OPTIONS TEXT. *//')) The inner $() runs the command while the outer () causes Nov 7, 2023 · The above bash script simply uses the date command and passes the output to the current_date variable. 0. echo command examples. Jul 8, 2017 · You can get the shell to echo everything it is doing, by running the following command: sh -x yourscript Or you can add this as the first command in the script: set -x It can get a bit too verbose, though. Syntax : For Example : Output : There are generally three options: -n: It does not print the trailing newline. You can use $(!!) to recompute (not re-use) the output of the last command. Or you could pass it as an argument to a shell: bash -c "$(echo "mv ")" Or you could use the bash built-in eval: eval "$(echo "mv ")" Note, however, that all of those code-generating commands look a bit brittle to me (there are ways they will fail as Jun 7, 2010 · echo "my errz" >> /dev/stderr. The echo command is a built-in command in bash scripting that is used to display text to the terminal. edited Dec 30, 2015 at 16:25. The script is run by the root user's crontab every hour (via sudo crontab -e). makes sure that the output of a become the input of b. ls | echo prints just a blank line because echo reads no input; the last command of the pipeline is actually echo that prints nothing but a blank line. !! | grep "warning". echo is a shell builtin. echo "return value". Jul 1, 2017 · 40. txt | xargs -L 1 /path/to/your_script. And the following calls external echo command: $ /bin/echo <some-text>. [The caveat there is if you want to be sure somecommand keeps running even after emitting string, in which case using grep -q-- by closing its stdin and exiting after the first instance of string is seen -- can be counterproductive]. , the output from a command) to a variable and then manipulate it – for example, concatenate it with a string, then echo it. I want to assign the result of an expression (i. Use the output redirection operator ‘>’ to save the output to a file. Mar 12, 2024 · The echo command in Linux is a built-in command that allows users to display lines of text or strings that are passed as arguments. Jan 22, 2017 · Fairly simple, I have an echo statement in my shell (bash) script that I want to redirect to an external file as a means of logging. With shell scripting, one needs to always quote variables, especially when working with strings. Like this: run: @java myprogram. cat output. Here is a bash script to save the script output to a file using the redirection Yes, but you must put it in curly brackets, otherwise the redirection will be part of the command that time evaluates. Apr 17, 2019 · Displaying output of a command. echo "Welcome to Ubuntu" | tee output. You could do this: make. echo -e “ some text \n some other text \n word \n\t some long explain. May 31, 2021 · Stack Exchange Network. For example, if you run echo -e "It is \e[1;31m$(date)\e[0m today. For instance ( echo foo | tee file ; false ) && echo bar displays foo. If he said 'I am trying to run a command', or some such, I would have talked about eval. Echo output of a piped command. But bash also allows you to "redirect" the output of any command, saving it to a text file so I tried the following command in bash. 2. The script command is capturing everything that is displayed on your screen, the read foo one is there to prevent the script command to finish before the terminal emulator has output the string you want to get. If you want to include stderr, do: program [arguments] 2>&1 | tee outfile. To assign the output of a command to an array, you need to use a command substitution inside of an array assignment. Send Text to Standard Output. Most workflow commands use the echo command in a specific format, while others are invoked by writing to a file. @Daniel You could always redirect the internal command output separately (i. sh using the nano command and open the script in the text editor like the following. when you're using bash on those systems, its built-in echo command takes over. txt with a find . Next, write the following script inside the Bash file in the nano text editor: #! /bin/bash. hy by nk qg qa sn jk fk lv nm