Linux Command Directory
This directory of Linux commands is from Linux in a Nutshell, 5th Edition.
Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.
System administration command. Normally started in a system startup file. Execute jobs queued by the at command.
Wait at least n seconds after beginning one job before beginning the next job. Default is 60.
Print error messages to standard error instead of using syslog.
When system load average is higher than average, wait to begin a new job. Default is 0.8.
Process queue once, then exit.