From ec23b7115c5c318a03ab27047a90ac95c6e424bf Mon Sep 17 00:00:00 2001 From: Xiang Wang Date: Wed, 25 Aug 2021 23:03:01 +0800 Subject: [PATCH] flock: add page (#6390) --- pages/linux/flock.md | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 pages/linux/flock.md diff --git a/pages/linux/flock.md b/pages/linux/flock.md new file mode 100644 index 000000000..f1b4de436 --- /dev/null +++ b/pages/linux/flock.md @@ -0,0 +1,17 @@ +# flock + +> Manage locks from shell scripts. +> It can be used to ensure that only one process of a command is running. +> More information: . + +- Run a command with a file lock as soon as the lock is not required by others: + +`flock {{path/to/lock.lock}} --command "{{command}}"` + +- Run a command with a file lock, and exit if the lock doesn't exist: + +`flock {{path/to/lock.lock}} --nonblock --command "{{command}}"` + +- Run a command with a file lock, and exit with a specific error code if the lock doesn't exist: + +`flock {{path/to/lock.lock}} --nonblock --conflict-exit-code {{error_code}} -c "{{command}}"`