Also most of the operations that can be done via command line on AIX can be done also via a very nice and functional ncurses interface menu program called smitty.
If you have to deal with IBM AIX be sure to check out smitty

Sun OS / Solaris equivalent to Linux’s
free -m

is

vmstat 1 2

kthr memory page disk faults cpu
r b w swap free re mf pi po fr de sr m1 m1 m1 m2 in sy cs us sy id
0 0 0 13367576 5693088 228 185 8 11 10 0 0 0 0 0 0 418 462 340 33 3 64
0 0 0 13070920 5463592 0 6 0 0 0 0 0 0 0…

[Read more]

Sun OS equivalent to Linux\’s strace trace system process calls is truss

Sun OS / Solaris equivalent of Linux\’s:

cat /etc/issue

is
# cat /etc/release

Solaris 9 9/05 s9s_u8wos_05 SPARC
Copyright 2005 Sun Microsystems, Inc. All Rights Reserved.
Use is subject to license terms.
Assembled 04 August 2005

pkgchk -l -p /usr/sbin/ping
Pathname: /usr/sbin/ping
Type: regular file
Expected mode: 4511
Expected owner: root
Expected group: bin
Expected file size (bytes): 47932
Expected sum(1) of contents: 20791
Expected last modification: Sep 30 22:37:21 2004
Referenced by the following packages:
SUNWbip
Current status: installed

Linux\’s tcpdump equivalent on Sun OS is snoop

FreeBSD\’s netstat -rn (list routing table info) equivalent under Sun OS is netstat -ri

modinfo command on Sun OS is like Linux\’s lsmod / BSD kldstat, and modload is like Linux\’s modprobe

To get kernel parameters on Sun / Solaris (like sysctl -a on Linux / BSD):

getconf -a

To get all devices installed and existing on Sun OS

sysdef

psrinfo in Sun OS shows info about installed onboard processors:

# psrinfo

0 on-line since 03/18/2012 02:03:17
2 on-line since 03/18/2012 02:03:17
16 on-line since 03/18/2012 02:03:17
18 on-line since 03/18/2012 02:03:17