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.
26 lines
555 B
Markdown
26 lines
555 B
Markdown
# [
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> Utvärdera villkor.
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> Returnerar 0 om villkoret är sant, 1 om villkoret är falsk.
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> Mer information: <https://www.gnu.org/software/bash/manual/bash.html#index-test>.
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- Testa om en given variabel är lika med en given sträng:
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`[ "{{$VARIABEL}}" = "{{/bin/zsh}}" ]`
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- Testa om en given variabel är tom:
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`[ -z "{{$GIT_BRANCH}}" ]`
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- Testa om filen existerar:
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`[ -f "{{väg/till/fil}}" ]`
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- Testa om en katalog inte existerar:
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`[ ! -d "{{väg/till/katalog}}" ]`
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- If-else uttryck:
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`[ {{villkor}} ] && {{echo "true"}} || {{echo "false"}}`
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