Easy Commands + AIX

Easy Commands + AIX:

1) Commands to get WWN number of HBA:

test1 #lsdev |grep fcs
fcs0         Available 05-08         FC Adapter
fcs1         Available 06-08         FC Adapter
fcs2         Available 09-08         FC Adapter

test1#lscfg -vl fcs0 |grep Network
        Network Address.............10000000C95C5AA9

test1#lscfg -vl fcs2 |grep Network
        Network Address.............10000000C9584830

test1#lscfg -vl fcs1 |grep Network
        Network Address.............10000000C95C79C4     

2)  Command to use previous root password:

test#chuser histexpire=0 histsize=0 root

histexpire Specifies the number of weeks that a user cannot reuse a password. (between 0 and 260 weeks). 

histsize Specifies the number of previous passwords that the user cannot reuse. (between 0 and 50). 

3) Creates a new user account:

useradd [ -c comment ] [ -d dir ] [ -e expire ] [ -g group ] [ -G group1,group2 ... ] [ -m [ -k skel_dir ] ] [ -u uid ] [ -s shell ] [ -r role1,role2 ... ] login


4) 10 largest files under /var directory:

$ find /var -type f -xdev -print | xargs -e ll | sort -rn -k5 | head -n 10

5) command to find os version

#oslevel

6) command to get server serial number:

# lsconf | grep -e "Machine Serial"

7) Acitivate/deactivate VG

#varyoffvg newvg                    to deactviate VG newvg

#varyonvg newvg                    to activate VG newvg

Thanks...

Kiran Jadhav

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