# _murex_ Shell Docs

## Command Reference: `lockfile`

> Create and manage lock files

## Description

`lockfile` is used to create and manage lock files

## Usage

Create a lock file with the name `identifier`

    lockfile: lock identifier
    
Delete a lock file with the name `identifier`

    lockfile: unlock identifier
    
Wait until lock file with the name `identifier` has been deleted

    lockfile: wait identifier
    
Output the the file name and path of a lock file with the name `identifier`

    lockfile: path identifier -> <stdout>

## Examples

    lockfile: lock example
    out: "lock file created: ${lockfile path example}"
    
    bg {
        sleep: 10
        lockfile: unlock example
    }
    
    out: "waiting for lock file to be deleted (sleep 10 seconds)...."
    lockfile: wait example
    out: "lock file gone!"

## See Also

* [commands/`bg`](../commands/bg.md):
  Run processes in the background
* [commands/`out`](../commands/out.md):
  Print a string to the STDOUT with a trailing new line character