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.
Buy it now, or read it online 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.