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* echo: add exit code command --------- 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>
28 lines
709 B
Markdown
28 lines
709 B
Markdown
# echo
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> Print given arguments.
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> More information: <https://www.gnu.org/software/coreutils/echo>.
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- Print a text message. Note: quotes are optional:
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`echo "{{Hello World}}"`
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- Print a message with environment variables:
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`echo "{{My path is $PATH}}"`
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- Print a message without the trailing newline:
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`echo -n "{{Hello World}}"`
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- Append a message to the file:
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`echo "{{Hello World}}" >> {{file.txt}}`
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- Enable interpretation of backslash escapes (special characters):
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`echo -e "{{Column 1\tColumn 2}}"`
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- Print the exit status of the last executed command (Note: In Windows Command Prompt and PowerShell the equivalent commands are `echo %errorlevel%` and `$lastexitcode` respectively):
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`echo $?`
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