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tldr/pages/common/echo.md
shreenidhi11 1c4e1d0a7a
echo: add exit code command (#10538) 
* echo: add exit code command

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Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
Co-authored-by: Jack Lin <blueskyson1401@gmail.com>
Co-authored-by: Lena <126529524+acuteenvy@users.noreply.github.com>
2023-07-25 22:47:16 +05:30

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echo

Print given arguments. More information: https://www.gnu.org/software/coreutils/echo.

  • Print a text message. Note: quotes are optional:

echo "{{Hello World}}"

  • Print a message with environment variables:

echo "{{My path is $PATH}}"

  • Print a message without the trailing newline:

echo -n "{{Hello World}}"

  • Append a message to the file:

echo "{{Hello World}}" >> {{file.txt}}

  • Enable interpretation of backslash escapes (special characters):

echo -e "{{Column 1\tColumn 2}}"

  • Print the exit status of the last executed command (Note: In Windows Command Prompt and PowerShell the equivalent commands are echo %errorlevel% and $lastexitcode respectively):

echo $?