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tldr/pages/common/until.md
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Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>

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Co-authored-by: K.B.Dharun Krishna <kbdharunkrishna@gmail.com>
2024-12-21 18:41:25 +01:00

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until

Simple shell loop that repeats until it receives zero as return value. More information: https://www.gnu.org/software/bash/manual/bash.html#index-until.

  • Execute a command until it succeeds:

until {{command}}; do :; done

  • Wait for a systemd service to be active:

until systemctl is-active --quiet {{nginx}}; do {{echo "Waiting..."}}; sleep 1; done; {{echo "Launched!"}}