at_takumi.mizutani
2022年7月29日 16時43分
Linuxコマンドのリファレンスマニュアルを表示するにはmanコマンドを使用します。
コマンドの概要のみを表示す場合にはwhatisコマンドを使用します。
※ここでは例として、systemctlコマンドについて調べます。
[armadillo ~]# man systemctl
SYSTEMCTL(1) systemctl SYSTEMCTL(1)
NAME
systemctl - Control the systemd system and service manager
SYNOPSIS
systemctl [OPTIONS...] COMMAND [UNIT...]
DESCRIPTION
systemctl may be used to introspect and control the state of the
"systemd" system and service manager. Please refer to systemd(1) for an
introduction into the basic concepts and functionality this tool
manages.
COMMANDS
The following commands are understood:
Unit Commands (Introspection and Modification)
list-units [PATTERN...]
List units that systemd currently has in memory. This includes
units that are either referenced directly or through a dependency,
units that are pinned by applications programmatically, or units
that were active in the past and have failed. By default only units
[armadillo ~]# whatis systemctl
systemctl (1) - Control the systemd system and service managerまた、aproposコマンドを使用することで部分一致検索でコマンドの概要を表示することもできます。
[armadillo ~]# apropos systemc deb-systemd-helper (1p) - subset of systemctl for machines not running systemd deb-systemd-invoke (1p) - wrapper around systemctl, respecting policy-rc.d systemctl (1) - Control the systemd system and service manager