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: turns off the computer. Insert a note in the file /var/log/wtmp; if the system is in runlevel 0 or 6, stop all processes; otherwise, call shutdown -h.
Suppress writing to /var/log/wtmp.
Call halt even when shutdown -nf would normally be called (i.e., force a call to halt, even when not in runlevel 0 or 6).
Place hard drives in standby mode before halt or power off.
Shut down network interfaces before halt.
No sync before reboot or halt.
Perform power-off when halting system.
Suppress normal call to sync.
Suppress normal execution; simply write to /var/log/wtmp.