Difference between revisions of "HP-UX"

links

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

tips and notes

shell

• to redirect Standard Error to a file use ...

'2>' 

.. instead of usuall

'>' 

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

• 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
  • character or raw device
    • 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'

users management=

• 'id' 'groups' 'newgrp'

to test yet

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