Useful Commands/System Management: Difference between revisions

Revision as of 09:19, 8 March 2019

情境	指令
List process	ps -axo pid,command ps -axo pid,command \| awk 'match($2, /^ssh/) { print $0; }' ps -axo pid,command \| awk 'match($2, /^login/) { print $0; }' ps -axo pid,command \| awk 'match($2, /^-?bash/) { print $0; }'
List process tree	pstree 713 pstree $(ps -axo pid,command \| awk 'match($2, /^login/) { print $1 }')
CPU & Memory	# Linux cat /proc/cpuinfo cat /proc/meminfo free
Locale	locale # current locale locale -a # available locales sudo locale-gen # rebuild locales
Run a command one minute later	echo "ls -l > `tty`" \| at now + 1 minute

@@ Line 12: / Line 12: @@
 | List process tree ||
 <source lang="bash">
-# Mac/BSD
+pstree 713
-pstree -p 713
 pstree $(ps -axo pid,command | awk 'match($2, /^login/) { print $1 }')
-# Linux
-pstree 713
-pstree -p $(ps -acxo pid,command | awk '/sshd/{print $1}' | head -n 1)
-pstree -p $(ps -acxo pid,command | awk '/bash/{print $1}' | tail -n 2 | head -n 1)
 </source>
 |-