1
0
Fork 0
mirror of https://github.com/tldr-pages/tldr.git synced 2025-04-29 23:24:55 +02:00
tldr/pages/common/until.md

12 lines
404 B
Markdown

# 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 {{[-q|--quiet]}} {{nginx}}; do {{echo "Waiting..."}}; sleep 1; done; {{echo "Launched!"}}`