Category Archives: Linux

• BASH is much easier to set a prompt that displays the current directory. To do the same in Kornshell is hackish. • Kornshell has associative arrays and BASH doesn’t. Now, the last time I used Associative arrays was… Let … Continue reading →

HP-UX MBYTE=300 VG=vg00 LV=lv_swap2 LVOL=/dev/$VG/$LV ORG_DSKS=/dev/dsk/c0t12d0 MIRR=1 MIR_DSKS=/dev/dsk/c2t12d0 PRI=1 Option -s only works if physical VGs are defined only in EMC or Clariion disk type sudo lvcreate -n $LV -s y -r N /dev/$VG If it is not EMC nor … Continue reading →

Booting HP-UX in Single-User Mode To boot to HP-UX in single-user mode, follow these steps: 1. At the BCH Main Menu, enter command or menu> bo pri. The following message displays: Interact with IPL (Y, N, or Cancel)?> 2. To … Continue reading →

If you want to edit ulimit variables that return with the ulimit -a command: You can do it temporarily from the command line with the ulimit command, but to make it permanent, you have to put the change in /etc/security/limits.conf. … Continue reading →

1) Set the password expiry date for username (*-M will update both “Password expires” and “Maximum number of days between password change”): chage -M number-of-days username *If the password expiry date is reached and user doesn’t change his password, the … Continue reading →

[root@vickistan ~]# cat /etc/redhat-release CentOS release 6.6 (Final) If that doesn’t produce results, try this: [root@vickistan ~]# lsb_release -i -r Distributor ID: RedHatEnterpriseServer Release: 5.5

Ubuntu: dpkg -s PKGNAME Red Hat: rpm -q PKGNAME Arch Linux: pacman -Si PKGNAME

This is how to stop a running service temporarily: # systemctl stop servicename.service This stops it from starting at boot, but does not stop a running service: # systemctl disable servicename.service That also prevents it from being started by anything … Continue reading →

Yum Server Side Take a look at the available repositories with the repolist option to yum: $yum repolist Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile epel/metalink | 13 kB 00:00 * base: mirror.symnds.com * epel: epel.mirror.constant.com * extras: … Continue reading →