Difference between revisions of "Linux"
From SpenchWiki
| Line 32: | Line 32: | ||
== Redirection == | == Redirection == | ||
| − | * 2>&1 | + | * stdout and stderr: |
| + | <code> | ||
| + | 2>&1 | ||
| + | </code> | ||
| + | * Under Window CMD, this is the equivalent: | ||
| + | <code> | ||
| + | program > log.txt 2>&1 | ||
| + | </code> | ||
== Prevent screen blanking == | == Prevent screen blanking == | ||
| + | <code> | ||
setterm -blank 0 | setterm -blank 0 | ||
| + | </code> | ||
== Using rsync for local file comparisons == | == Using rsync for local file comparisons == | ||
| + | <code> | ||
rsync -avnhW "Desktop/My Passport/Mitsubishi090109_10" "/Volumes/My Passport" | rsync -avnhW "Desktop/My Passport/Mitsubishi090109_10" "/Volumes/My Passport" | ||
| + | </code> | ||
== tcpdump with greater snarf size == | == tcpdump with greater snarf size == | ||
| + | <code> | ||
tcpdump -s 1500 -w out-file.pcap <expression> | tcpdump -s 1500 -w out-file.pcap <expression> | ||
| + | </code> | ||
== Scripts == | == Scripts == | ||
| Line 92: | Line 105: | ||
* Log file viewers: | * Log file viewers: | ||
| − | < | + | <code> |
sudo tail -F -n 50 --max-unchanged-stats=5 /var/log/apache2/access.log | ccze | sudo tail -F -n 50 --max-unchanged-stats=5 /var/log/apache2/access.log | ccze | ||
sudo tail -F --max-unchanged-stats=5 -n 50 /var/log/squid/access.log | ccze -C | sudo tail -F --max-unchanged-stats=5 -n 50 /var/log/squid/access.log | ccze -C | ||
sudo tail -F --max-unchanged-stats=5 -n 100000 /var/log/auth.log 2> /dev/null | grep --line-buffered -E "(sshd).*(Accepted)" | ccze | sudo tail -F --max-unchanged-stats=5 -n 100000 /var/log/auth.log 2> /dev/null | grep --line-buffered -E "(sshd).*(Accepted)" | ccze | ||
sudo watch -d -t 'netstat -p -t | grep ESTABLISHED' | sudo watch -d -t 'netstat -p -t | grep ESTABLISHED' | ||
| − | </ | + | </code> |
Revision as of 16:29, 12 February 2010
Contents
[hide]Useful apps
Squid:
- squidtaild
- squidclient
- srg
- squidview
- calamaris
- sarg
Highlighter:
- ccze
Cleaning useless Debian items:
- localepurge
- deborphan
- debfoster
Monitoring:
- iptraf
- bmon
WebDAV:
- cadaver
- nd
Redirection
- stdout and stderr:
2>&1
- Under Window CMD, this is the equivalent:
program > log.txt 2>&1
Prevent screen blanking
setterm -blank 0
Using rsync for local file comparisons
rsync -avnhW "Desktop/My Passport/Mitsubishi090109_10" "/Volumes/My Passport"
tcpdump with greater snarf size
tcpdump -s 1500 -w out-file.pcap <expression>
Scripts
- lesspipe.sh
Use in conjuction with environment variables:
export LESS=-R
export LESSOPEN="|/usr/local/bin/lesspipe.sh %s"
Script:
#!/bin/sh
case "$1" in
*.log.[0-9]*.gz) gunzip -c $1 2>/dev/null | ccze -A
;;
*.log|*.log.[0-9]*) cat $1 | ccze -A
;;
*.gz) gunzip -c $1 2>/dev/null
;;
esac
- Nice terminal colours:
export PAGER='less -R -s -i'
# Blink
export LESS_TERMCAP_mb=$'\E[05;31m'
# Bold
export LESS_TERMCAP_md=$'\E[01;33m'
# End above modes
export LESS_TERMCAP_me=$'\E[0m'
# End standout
export LESS_TERMCAP_se=$'\E[0m'
# Stand out
export LESS_TERMCAP_so=$'\E[00;44;33m'
# End underline
export LESS_TERMCAP_ue=$'\E[0m'
# Underline
export LESS_TERMCAP_us=$'\E[04;32m'
- Log file viewers:
sudo tail -F -n 50 --max-unchanged-stats=5 /var/log/apache2/access.log | ccze
sudo tail -F --max-unchanged-stats=5 -n 50 /var/log/squid/access.log | ccze -C
sudo tail -F --max-unchanged-stats=5 -n 100000 /var/log/auth.log 2> /dev/null | grep --line-buffered -E "(sshd).*(Accepted)" | ccze
sudo watch -d -t 'netstat -p -t | grep ESTABLISHED'
