pstreeを実行してみよう
pstree
%入力したが実行できず、それで yum install psmisc -yを入力してインストール
%-yオプションはすべてyesにするという意味になる
%実行例は-yをしなかったので一回yを入力した。
[root@ik1-331-25935 subNewDir3]# yum install psmisc
Loaded plugins: fastestmirror, langpacks
base | 3.6 kB 00:00:00
epel/x86_64/metalink | 7.8 kB 00:00:00
epel | 4.7 kB 00:00:00
extras | 3.4 kB 00:00:00
updates | 3.4 kB 00:00:00
(1/7): base/7/x86_64/group_gz | 156 kB 00:00:01
(2/7): epel/x86_64/group_gz | 266 kB 00:00:01
(3/7): extras/7/x86_64/primary_db | 185 kB 00:00:01
(4/7): epel/x86_64/updateinfo | 904 kB 00:00:03
(5/7): updates/7/x86_64/primary_db | 6.9 MB 00:00:04
(6/7): epel/x86_64/primary_db | 6.3 MB 00:00:07
(7/7): base/7/x86_64/primary_db | 5.7 MB 00:00:08
Determining fastest mirrors
* base: ftp.iij.ad.jp
* epel: mirror01.idc.hinet.net
* extras: ftp.iij.ad.jp
* updates: ftp.iij.ad.jp
Resolving Dependencies
--> Running transaction check
---> Package psmisc.x86_64 0:22.20-15.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
========================================================================================================================================================================
Package Arch Version Repository Size
========================================================================================================================================================================
Installing:
psmisc x86_64 22.20-15.el7 base 141 k
Transaction Summary
========================================================================================================================================================================
Install 1 Package
Total download size: 141 k
Installed size: 475 k
Is this ok [y/d/N]: y
Downloading packages:
psmisc-22.20-15.el7.x86_64.rpm | 141 kB 00:00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Installing : psmisc-22.20-15.el7.x86_64 1/1
Verifying : psmisc-22.20-15.el7.x86_64 1/1
Installed:
psmisc.x86_64 0:22.20-15.el7
Complete!
pstree %インストール後実行結果
[root@ik1-331-25935 subNewDir3]# pstree
systemd-+-NetworkManager---2*[{NetworkManager}]
|-abrt-watch-log
|-abrtd
|-2*[agetty]
|-atd
|-auditd---{auditd}
|-chronyd
|-crond
|-dbus-daemon
|-fail2ban-server---2*[{fail2ban-server}]
|-firewalld---{firewalld}
|-lsmd
|-lvmetad
|-master-+-pickup
| `-qmgr
|-polkitd---5*[{polkitd}]
|-rngd
|-rsyslogd---2*[{rsyslogd}]
|-smartd
|-sshd---sshd---bash---pstree
|-systemd-journal
|-systemd-logind
|-systemd-udevd
|-tuned---4*[{tuned}]
`-wpa_supplicant
pstree -p %プロセスID確認コマンドまたは topコマンド