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Commands by wejn from sorted by
Terminal - Commands by wejn - 9 results
ip a s eth0 | awk -F'[/ ]+' '/inet[^6]/{print $3}'
sudo dpkg -P $(dpkg -l yourPkgName* | awk '$2 ~ /yourPkgName.*/ && $1 ~ /.i/ {print $2}')
2014-08-06 22:40:32
User: wejn
Functions: awk sudo
Tags: dpkg purge

Recently in Debian Wheezy the dpkg command refuses to work with wildcards, so this is the one-liner alternative. (alternative to #13614)

ruby -ruri -e 'u=URI(ARGV[0]).host.split("."); puts u[(u[-2] =~ /^com?$/ ? -3 : -2)..-1].join(".")' http://test.example.com
2014-05-25 18:43:44
User: wejn
Tags: ruby

Extracts 2nd-level domain part (or 3rd level, for co.* or com.*) from the URI's hostname. See sample output.

while true; do clear;awk '{a[$3]+=1};END{for(x in a){print x,a[x]}}' /proc/[0-9]*/stat; sleep 1; done
awk '$1=="Host"{$1="";H=substr($0,2)};$1=="HostName"{print H,"$",$2}' ~/.ssh/config | column -s '$' -t
2014-05-24 20:51:47
User: wejn
Functions: awk column
Tags: awk column

Spits out table that shows your Host->HostName aliases in ~/.ssh/config

lsof|gawk '$4~/txt/{next};/REG.*\(deleted\)$/{printf ">/proc/%s/fd/%d\n", $2,$4}'
2014-03-11 10:40:32
User: wejn
Functions: gawk
Tags: awk lsof gawk

While the posted solution works, I'm a bit uneasy about the "%d" part. This would be hyper-correct approach:

lsof|gawk '$4~/txt/{next};/REG.*\(deleted\)$/{sub(/.$/,"",$4);printf ">/proc/%s/fd/%s\n", $2,$4}'

Oh, and you gotta pipe the result to sh if you want it to actually trim the files. ;)

Btw, this approach also removes false negatives (OP's command skips any deleted files with "txt" in their name).

ruby -ryaml -rjson -e 'puts YAML.dump(JSON.parse(STDIN.read))' < file.json > file.yaml
netstat -antu | awk '{print $5}' | awk -F: '{print $1}' | sort | uniq -c | sort -n
2013-04-08 19:46:41
User: wejn
Functions: awk netstat sort uniq

Output contains also garbage (text parts from netstat's output) but it's good enough for quick check who's overloading your server.

tcpdump -s 1024 -l -A -n host
2013-02-02 22:29:52
User: wejn
Functions: host tcpdump
Tags: http tcpdump

This is a better way to do the "src X or dst X" filter; plus you might not want to bother with DNS lookups (-n).