mirror of
https://github.com/notwa/rc
synced 2024-09-19 09:44:05 -07:00
17 lines
463 B
Bash
Executable file
17 lines
463 B
Bash
Executable file
#!/usr/bin/env sh
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# compat: +ash +bash +dash +hush -ksh +mksh +oksh +osh +posh +yash +zsh
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isup() { ### @-
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### return 0 if a given website returns a 2xx HTTP code.
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###
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### ```
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### $ isup google.com && echo yay || echo nay
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### yay
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### $ isup fdhafdslkjgfjs.com && echo yay || echo nay
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### nay
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### ```
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local c="$(curl -sLI -w '%{http_code}' -o /dev/null "$1")"
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[ -z "${c#2[0-9][0-9]}" ]
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}
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[ -n "${preload+-}" ] || isup "$@"
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