Difference between revisions of "HP-UX"

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***moves blocks to buffer and writes after 'sync' executed by 'syncer'  daemon
 
***moves blocks to buffer and writes after 'sync' executed by 'syncer'  daemon
 
***on 'ls -al' first letter is 'b'
 
***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
 
==to test yet==
 
==to test yet==
 
*cut
 
*cut
 
*tee - sends output of pipe to additional place (file as well as stout f.e.)
 
*tee - sends output of pipe to additional place (file as well as stout f.e.)

Revision as of 09:37, 29 August 2006

links

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

to test yet

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