Netexpertise

Arrows aren’t used in ksh as a default. To enable command history like in Bash, add the following lines in the .profile or .kshrc file:

# Switch to Emacs mode
# Only Emacs mode lets you make use of arrow keys
set -o emacs

# Go back in command history (up arrow)
alias __A=’^P’
# Go back in command history (down [...]

Tags: Aix, ksh, linux, solaris, unix

Here’s a package managers basic commands quick reminder/comparative for (in this order)
- Linux Debian/Ubuntu,
- Linux Redhat/Suse and
- Solaris/OpenSolaris.
 
rpm and dpkg are basic package managers while yum (rpm) and apt-get/aptitude (dpkg) manage dependancies and (online) repositories.
 
# List ALL installed packages
dpkg –list
rpm -qa | grep rpm
pkginfo
 
# Remove package
dpkg –remove package or
aptitude remove package or
apt-get remove package
rpm -e [...]

Tags: apt-get, aptitude, debian, dpkg, linux, manager, package, redhat, rpm, solaris, suse, ubuntu

Need more swap but not more disk space to create a partition? Add a temporary swap file.
 
Solaris
[root@solaris]# mkfile 1024m /export/tmpswap
[root@solaris]# swap -a /export/tmpswap
[root@solaris]# swap -l

swapfile
 dev
 swaplo 
 blocks
 free

/dev/dsk/c1t0d0s1 
 55,65 
 8
 4160824 
 4160824 

/export/tmpswap
 -
 8
 2097144
 2097144

 
Linux
[root@linux]# dd if=/dev/zero of=tmpswap bs=1024 count=10240
[root@linux]# 10240+0 records in
10240+0 records out
10485760 bytes (10 MB) copied, 0.528435 seconds, 19.8 MB/s
[root@linux]# mkswap tmpswap
Setting up swapspace version 1, size = 10481 kB
[root@linux]# swapon tmpswap
[root@linux]# [...]

Tags: add, file, linux, solaris, swap, temporary