Linux:Bash Useful Tips

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Extending a LV (ext4/xfs) with all available space in one command

lvextend -l 100%FREE /dev/vg_base/var -r

Renaming multiple files with the same extension in CentOS

rename .ext .ext.bak *.ext

(!) Beware that the rename command may work differently acc. to your Linux distribution

snmp v3 command sample

snmpwalk -v3 -l authPriv -u <uid> -a SHA -A <pwd> -x DES -X <pwd> <fqdn/ip> <oid-optional>
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