* System Administration
** Job monitoring
http://news.ycombinator.com/item?id=1905991
http://www.cyberciti.biz/tips/top-linux-monitoring-tools.html

Good start, can also take a look at the repo.or.cz monitoring that was
setup.
** repo.or.cz hosting
** arch
** fedora
*** find installed package related to file
rpm -qf /path/to/file
*** service start up
http://linuxcommand.org/man_pages/chkconfig8.html
command use to manage links to the rc[0-6].d directories
** ubuntu
** meego
** work proxy
*** git
from
http://opensource.intel.com/linux-wiki/LinuxDesktop#head-5821e8deb4a31049ba106f03fe38466934698438

export GIT_PROXY_COMMAND=`echo ~`/bin/git-proxy"

bin/git-proxy
#!/bin/bash
PROXY=proxy-socks.jf.intel.com
PORT=1080
case $1 in
        # list git servers INTERNAL to intel here that you do not want to use
        # a proxy for, separated by a pipe character '|' as below
git.moblin.org|gitexample.intel.com)
        METHOD="-X connect"
        ;;
*)
        METHOD="-X 5 -x ${PROXY}:${PORT}"
        ;;
esac
/usr/bin/nc $METHOD $*
*** ssh
.ssh/config
proxycommand nc -x proxy-socks.jf.intel.com:1080 -X 5 %h %p
*** http
*** email
** one liners
*** sed
Remove the 3rd line:
sed '3d' fileName.txt

Removal of the line containing the string "awk":
sed '/awk/d' filename.txt

Remove the last line:
sed '$d' filename.txt

Remove all empty lines:
sed '/^$/d' filename.txt
sed '/./!d' filename.txt

Removing the interval between lines 7 and 9.
sed '7,9d' filename.txt

For permanent changes to the old versions (<4) use a temporary file for GNU sed use the "-i[suffix]":
sed -i".bak" '3d' filename.txt
*** awk
http://www.catonmat.net/blog/wp-content/uploads/2008/09/awk1line.txt
** general *nix stuff
*** Strings
grep
awk
uniq, sort, sort -n
seq
cut
wc
*** Files
rsync
lsof
find | xargs
locate
df -H
du -cks * | sort -n
scp
strings
file
touch
z* (zgrep, zcat, etc)
tail -f, head
*** Administration
man
ps auxf (f only on GNU)
kill, -HUP, -9
sudo
screen
/etc/init.d/ scripts
id
^Z, fg, jobs, &
*** Networking
nmap
dig
tcpdump
wget
curl
ifconfig
*** Operators
The knowledge that bash is a programming language that provides all your basic constructs (ifs, loops, variables, functions), but instead of having a library of functions, you execute simple programs instead
|
<, >, >>
- as stdin, e.g. "cat somefile.txt | vi -"
for i in a b c d; do echo $i; something_else $i; done
alias
All the goodies at http://samrowe.com/wordpress/advancing-in-the-bash-shell/