mirror of
https://github.com/tldr-pages/tldr.git
synced 2025-04-23 20:02:09 +02:00
9d865abee1
* [: use posix-compliant example for equals comparison the previous example worked fine for bash, but some other shells (zsh, in my case) will not work when using "==" for comparison. the posix spec only requires "=", so I think it makes a little more sense to use that in the example. * test: use posix-compliant example for equals comparison the previous example worked fine for bash, but some other shells (zsh, in my case) will not work when using "==" for comparison. the posix spec only requires "=", so I think it makes a little more sense to use that in the example.
25 lines
656 B
Markdown
25 lines
656 B
Markdown
# test
|
|
|
|
> Check file types and compare values.
|
|
> Returns 0 if the condition evaluates to true, 1 if it evaluates to false.
|
|
> More information: <https://www.gnu.org/software/coreutils/test>.
|
|
|
|
- Test if a given variable is equal to a given string:
|
|
|
|
`test "{{$MY_VAR}}" = "{{/bin/zsh}}"`
|
|
|
|
- Test if a given variable is empty:
|
|
|
|
`test -z "{{$GIT_BRANCH}}"`
|
|
|
|
- Test if a file exists:
|
|
|
|
`test -f "{{path/to/file_or_directory}}"`
|
|
|
|
- Test if a directory does not exist:
|
|
|
|
`test ! -d "{{path/to/directory}}"`
|
|
|
|
- If A is true, then do B, or C in the case of an error (notice that C may run even if A fails):
|
|
|
|
`test {{condition}} && {{echo "true"}} || {{echo "false"}}`
|