Unix Commands on Different OS's

General Commands	AIX	HP-UX	LINUX(RedHat)	Solaris
Unique host ID	hostid	uname -i	hostid	hostid
Administrator	smit	sam	linuxconf	admintool
Performance monitor	top monitor	top glance	top	top
System activity reporter	sar	sar	sar {sysstat}	sar
Virtual Memory statistics	vmstat	vmstat	vmstat	vmstat
I/O statistics	iostat	iostat	iostat {sysstat}	iostat
Error logs	alog -o -t boot errpt	dmesg	dmesg	dmesg
Physical RAM	1TB	4TB	64 GB {>2.3.24}	16TB
Shared Memory	2.75GB	8TB	sysctl kernel.shmmax
Process Data Space	2GB	4GB	900 MB
Swap device	/dev/hd6	/dev/vg00/lvol2	/dev/sda2	/dev/vx/dsk/swapvol
Swap file type	/etc/swapspaces	swap	partition type 82	swap
Display swap size	lsps -a	swapinfo -a	free	swap -l
Activate Swap	swapon -a	swapon -a	swapon -a	swap -a
TCP/IP	AIX	HP-UX	LINUX(RedHat)	Solaris
Network IP configuration	lsattr -E -l inet0	/etc/rc.config.d/netconf	/etc/sysconfig/network-scripts/	/etc/hostname.* /etc/inet/* /etc/defaultrouter
Hosts IP addresses	/etc/hosts	/etc/hosts	/etc/hosts	/etc/inet/hosts
Name service switch	/etc/netsvc.conf	/etc/nsswitch.conf	/etc/nsswitch.conf	/etc/nsswitch.conf
Network parameters	no -a	ndd -h	sysctl -a | grep net	ndd /dev/[tcp|ip] ?
Routing daemon	gated	gated	routed	in.routed
NIC Configurations	ifconfig -a	lanscan -v	ifconfig -a	ifconfig -a
Secondary IP Address	ifconfig en0 alias IP	ifconfig lan0:1 IP	modprobe ip_alias ifconfig eth0:1 IP	ifconfig hme0:1 IP up
Login prompt	HERALD @ /etc/security/login.cfg	telnetd -b /etc/issue	/etc/issue	BANNER @ /etc/default/telnetd
Increase the # of pseudo-terminals	odmget -q "attribute=num and uniquetype=pty/pty/pty" PdAt | sed "s/0-64/0-512/" | odmchange -q "attribute=num and uniquetype=pty/pty/pty" -o PdAt chdev -l pty0 -anum=256 -P reboot	rebuild your kernel with these new values NPTY=# NSTRPY=# reboot insf -d ptys -n # insf -d ptym -n # insf -d pts -s # -e -v	cd /dev ./MAKEDEV -v pty	{/etc/system} set pt_cnt = #   {SYSV} set npty = #      {BSD} {/etc/iu.ap} ptsl 0 # ldterm ttcompat halt boot -r
Maximum # of ptys	512	{MAXUSERS}	256	176                {BSD} 3000              {SYSV}
Remote Shell	remsh rsh	remsh	rsh	rsh
YP/NIS service binder	/usr/lib/netsvc/yp/ypbind	/usr/lib/netsvc/yp/ypbind	/sbin/ypbind	/usr/lib/netsvc/yp/ypbind
System Files	AIX	HP-UX	LINUX(RedHat)	Solaris
NFS exported	/etc/exports	/etc/exports	/etc/exports	/etc/dfs/dfstab /etc/dfs/sharetab
NFS Client mounted directories	/etc/xtab	/etc/xtab	/var/lib/nfs/xtab	/etc/rmtab
Max File System	128 GB	128 GB	2 TB	1 TB 8000 TB {vxfs}
Max File Size	64 GB	128 GB	2 GB     {512B block size} 8192 GB  {8KB block size}	1 TB 2 GB {=<2.5.1}
Max # File Descriptors	64 K	60~ K	sysctl fs.file-max	64 K
DISK/LVM Commands	AIX	HP-UX:Disk &Filesystem	LINUX(RedHat)	SOLARIS
Filesystem table	/etc/filesystems	/etc/fstab	/etc/fstab	/etc/vfstab
Free disk blocks	df -k	bdf	df -k	df -k
Device listing	lsdev -C	/sbin/ioscan	cat /proc/devices	sysdef
Disk information	bootinfo -s hdisk#	diskinfo /dev/rdsk/c#t#d#	cat /proc/scsi/scsi0/sda/model	format -d c#t#d# format>current format>inquiry
Disk Label	lspv -l hdisk#	pvdisplay -v /dev/dsk/C#t#d#	fdisk -l	prtvtoc
LVM Concepts	Partition	logical extents	logical extents	sub disk
	Volume	logical volume	logical volume	Volume
				Plex
	Volume group	volume group	volume group	disk group
Journal Filesystem type	jfs	vxfs	ext3 reiserfs	vxfs
Default volume group	/dev/rootvg	/dev/vg00		/dev/vx/dsk/rootdg
Display volume group	lsvg -l rootvg	vgdisplay -v vg00	vgdisplay -v	vxprint -l -g rootdg
Modify physical volume	chpv	pvchange	pvchange
Prepare physical disk	mkdev -c disk -l hdisk#	pvcreate	pvcreate	vxdiskadd
List physical volume	lspv	pvdisplay	pvdisplay	vxprint -dl
Remove disk from volume group	reducevg	vgreduce	vgreduce	vxdg rmdisk
Move logical volumes to another physical volumes	migratepv	pvmove	pvmove	vxassist move
Create volume group	mkvg	vgcreate	vgcreate	vxdg init
Remove volume group		vgremove	vgremove
Volume group availability	chvg varyonvg varyoffvg	vgchange	vgchange
Restore volume group		vgcfgrestore	vgcfgrestore
Exports volume group	exportvg	vgexport	vgexport	vxdg deport
Imports volume group	importvg	vgimport	vgimport	vxdg import
Volume group listing	lsvg	vgscan	vgscan
Change logical volume characteristics	chlv	lvchange	lvchange	vxedit set
List logical volume	lslv	lvdisplay	lvdisplay	vxprint -vl
Make logical volume	mklv	lvcreate	lvcreate	vxassist make
Extend logical volume	extendlv	lvextend	lvextend	vxassist growto
Reduce logical volume	AIX reduce LV	lvreduce	lvreduce	vxassist shrinkto
Remove logical volume	rmlv	lvremove	lvremove	vxedit rm
Prepare boot volumes	bootlist -m normal	lvlnboot	lilo	vxbootsetup
Remove boot volumes		lvrmboot
Extend File system	chfs -a size=# /mt	extendfs /dev/vg00/lvol8 fsadm -F vxfs -b {LE * 1024} /mt	resize2fs resize_reiserfs	vxva mkfs -M
Reduce/Split mirrors	rmlvcopy	lvsplit	lvsplit
Merge mirrors		lvmerge	lvmerge
Create mirrors	mklv -c 2	lvcreate -m 1		vxassist mirror
Add mirrors	mklvcopy lv 2	lvextend -m 1
Create striped volumes	mklv -u 3 -S 64K	lvcreate -i 3 -I 64	lvcreate -i 3 -I 64	vxassist make vol 100mb layout=raid5
System recovery tape	mksysb -i /dev/rmt0	/opt/ignite/bin/make_recovery
Backup	savevg -i rootvg	fbackup	tar cvf /dev/rst0 /	ufsdump
Restore	restvg	frecover	tar xvf /dev/rst0	ufsrestore
MISC	AIX	HP-UX	LINUX(RedHat)	SOLARIS
Startup script	/etc/rc	/sbin/rc	/etc/rc.d/rc	/etc/init.d
Kernel	/usr/lib/boot/unix_up	/stand/vmunix	/boot/vmlinuz	/kernel/genunix
Kernel Parameters	lsattr -E -l sys0	sysdef kmtune kmsystem	sysctl -a	sysdef -i
Reconfigure the kernel	chdev -l sys0 -a	cd /stand/build /usr/lbin/sysadm/system_prep -v -s system vi system mk_kernel -s system cd /stand mv system system.prev mv vmunix vmunix.prev mv dlkm dlkm.prev mv /stand/build/system system kmupdate /stand/build/vmunix_test	cd /usr/src/linux make mrproper make menuconfig make dep make clean make bzImage make install make modules make modules_install cp arch/i386/boot/bzImage /boot/vmlinuz-2.2.16 mkinitrd /boot/initrd-2.2.16.img 2.2.16 vi /etc/lilo.conf lilo	vi /etc/system reboot
List modules	genkex	kmadmin -s	lsmod	modinfo
Load module		kmadmin -L	insmod	modload
Unload module		kmadmin -U	rmmod	modunload
Initialize system	install_assist	set_parms initial	netconf	sys-unconfig
Physical RAM	bootinfo -r	grep -i Physical /var/adm/syslog/syslog.log	free	prtconf
Kernel Bits	bootinfo -K	getconf KERNEL_BITS	getconf WORD_BIT	isainfo -kv
Crash utility	crash	adb	lcrash	crash
Trace System Calls	syscalls	tusc	strace	truss
Machine model	uname -m bootinfo -m	model uname -m	uname -m	uname -imp
OS Level	oslevel	uname -r	uname -r	uname -r
Run Level	who -r	who -r	runlevel	who -r
Core dump files	/var/adm/ras	/var/adm/crash		/var/crash/`uname -n`
Boot single user	Key on service mode/F4 Boot from CD/Tape Select Maintenance Limited function Shell	>boot Interact with IPL ? Y ISL>hpux -iS	{lilo} control-x linux S {grub} c kernel vmlinuz-2.4.9-13 single   ro root=/dev/hda8 initrd /initrd-2.4.9-13.img boot	ok boot -s
Maintenance mode		>boot Interact with IPL ? Y ISL>hpux -lm		ok boot -as
Interrupt Key		control-B		Stop-A
Return to console		co		ok go
Timezone Management	/etc/environment /etc/profile	/etc/TIMEZONE	/etc/sysconfig/clock	/etc/TIMEZONE /etc/default/init
NTP Daemon	/etc/ntp.conf startsrc -s xntpd	/etc/rc.config.d/netdaemons /sbin/init.d/xntpd	/etc/ntp.conf /etc/rc.d/init.d/xntpd	/etc/inet/ntp.conf /etc/init.d/xntpd