Linux/Unix:Generic: Difference between revisions

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;/etc/redhat-release
;/etc/redhat-release
:Redhat version installed
:Redhat version installed
;for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done
:Find swapspace usage per process


=Bash=
=Bash=
;<nowiki>:</nowiki>
;<nowiki>:</nowiki>
:No operation (NOP)
:No operation (NOP)

Revision as of 16:11, 26 October 2020

df -P
Report file-system information in parseble format.
df -h
Report file-system information in easy understandable precision (K, M or G when appropriate).
top
List process resource usage. By default having the most CPU-intensive process on top. Press > to have it sort on another column. Press 1 to have usage for each CPU apart.
lscpu
List CPU information
free
Show memory usage
cat /etc/sysctl.conf|grep swappiness
Check swappines (the eager the system will swap with). A higher number means more swapping will happen. 0 is not no swapping but minimal swapping.
uname -a
Show kernel version
mountpoint -q <directory>
Check if <directory> is in use as mountpoint
chage -l <username>
Show password aging status

RedHat (RHEL)

/etc/redhat-release
Redhat version installed
for file in /proc/*/status ; do awk '/VmSwap|Name/{printf $2 " " $3}END{ print ""}' $file; done
Find swapspace usage per process

Bash

:
No operation (NOP)