Difference between revisions of "HP-UX"

This page is a byproduct of me getting ready for HP-UX CSA exam (hpo-091). I have more previous knowledge in Linux, so what I point out here would be HPUX specifics and bits and pieces needed to be adopted by me with the end of systematization of my knowledge.

I am making notes as I go through CSA: Official Study Guide and Reference.

links

• HPUX reference
• HP-UX faq
• UnixGuide compare various Unixes

tips and notes

shell - system

• misc
  • posix is default shell in hpux
• files
  • .sh_history .profile controled by HISTFILE variable
• commands
  • extrinsic or intrinsic to the shell
  • history use Esc+K to navigate, shows last 15 commands by default
  • lock alias whoami who w logname uname getconf id banner cal

files & directories

• misc
  • file names can be 256 characters long
• commands
  • cat more pg pr ls lsf file grep
• syntax
  • mv file1 file2 dir/
  • find use for example with -name -size -atime -mtime -perm -type -exec
• files
  • /etc/magic

• I/O redirection
• to redirect Standard Error to a file use ...

2>

.. instead of usuall

>

environment variables

• environment (global) and shell (local)
  • difference - environment variables are inherited from parent proccess (shell) ..
• syntax
  • $ VARX=SomeValue
  • $ echo $VARX
  • $ VARX="$VARX addblah"
  • $ VARX=`command` (Bourne, POSIX)
  • $ VARX=$(command)
  • export VARX promotes shell variable to environment variable
• commands
  • set unset alias whence export
• misc
  • single quotations takes 'as is' value, not variable value
  • predefined (PATH HOME PWD SHELL TERM PS1 PS2 MANPATH TZ EDITOR LOGNAME)

VI commands

I - insert at ther begginig of the line 3,404w file.txt write lines 3 to 404 to file.txt :m n move current line to after line n :t n copy current line to after line n

kernel reconfiguration

• cd /stand/build
• /usr/lbin/sysadm/system_prep -s system - creates /stand/build/system as configuration file with parameters taken from running system
  • kmtune -S /stand/build/system - queries system parameters
  • kmtune -S /stand/build/system -s maxusers=30 - sample setting value of a parameter
  • kmsystem -S /stand/build/system -q ps2 - queries system for the status of ps2 value
  • kmsystem -S /stand/build/system -c Y ps2 - changes value of ps2 to Yes
  • kmadmin
• mk_kernel -s ./system - builds new kernel using system as configuration file

devices

• types of files - regular files, directories, devices, links, sockets, named pipes
• major and minor device number
  • major device number stands for driver used for device
  • minor device number is defined by physical location and device specifics..
• character and block device
  • named character or raw device file
    • for serial data transfer
    • on ls -al first letter is c
  • block devices
    • moves blocks to buffer and writes after sync executed by syncer daemon
    • on ls -al first letter is b

• device hardware address

c t d

• mknod syntax

disks / file systems

• pvdisplay
  • use block device file as argument
• vgdisplay
  • uses volume group device as argument f.e. /dev/vg00
• lvdisplay
  • uses logical volume block device as argument
• mediainit
  • formats disk and confirms integrity. uses raw / character device file!
• pvcreate
  • creates physical volume using raw device file
• vgcreate - creating volume group
  • mknod /dev/vg02/group c 64 0x020000
  • vgcreate /dev/vg02 /dev/dsk/c2t5d0
• vgextend
• lvcreate
  • f.e. lvcreate -L 500 -n masopust vg02 creates logical volume of size 500mb named mosopust in volume group vg02
• vgdisplay
• lvextend
• lvreduce
• lvdisplay
• extendfs - with Advanced JFS fsadm can be used without unmounting
• vgscan - manages volumes in /etc/lvmtab
• lvreduce pvchange pvremove vgremove vgreduce vgexport vgimport lvlnboot lvsplit lvmerge vgcfgbackup vgcfgrestore vxtunefs vxupgrade

• metadata - superblock, inodes, directory area
• fstyp
• newfs
• mount
• fuser - manages processes / use of filesystem. Useful if you want to unmount filesystem.
• bdf

backup

• commands tar sfbackup/frecover dd

users management

• id groups newgrp rsh pwck grpck vipws

processes

• nice renice timex trap

printing

• lp lpstat cancel lpalt rlpdaemon rmodel lpsched lpshut lpadmin accept LPDEST lpmove enable disable reject accept lpfence lpana

memory and swap

• daemons swapper vhand
• commands swapon swapinfo

automation

• commands cron crontab at batch

performance and optimization

• commands iostat vmstat netstat lanadmin top sar prmavail, Glance Plus UX, Perfview

LAN interface

• terminology
  • DLPI - Data Link Provider Service
• commands lsdev ioscan lanscan ifconfig netstat ndd linkloop
• files /etc/rc.config.d/hpetherconf hpbtlanconf nddconf

Samba

• commands smbclient smbstatus cifsmount ciflist

to do yet

• cut
• tee - sends output of pipe to additional place (file as well as stout f.e.)
• 'hardware path'