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Commands using egrep from sorted by
Terminal - Commands using egrep - 192 results
sudo netselect -v -s3 $(curl -s http://dns.comcast.net/dns-ip-addresses2.php | egrep -o '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' | sort | uniq)
2010-01-27 00:03:44
User: hackerb9
Functions: egrep sort sudo
2

Comcast is an ISP in the United States that has started hijacking DNS requests as a "service" for its customers. For example, in Firefox, one used to be able to do a quick "I'm Feeling Lucky" Google search by typing a single word into the URL field, assuming the word is not an existing domain when surrounded by www.*.com. Comcast customers never receive the correct NX (non-existent domain) error from DNS. Instead, they are shown a page full of advertising. There is a way to "opt out" from their service, but that requires having the account password and the MAC address of your modem handy. For me, it was easier just to set static DNS servers. But the problem is, which ones to choose? That's what this command answers. It'll show you the three _non-hijacked_ Comcast DNS servers that are the shortest distance away.

Perhaps you don't have Comcast (lucky you!), but hopefully this command can serve as an example of using netselect to find the fastest server from a list. Note that, although this example doesn't show it, netselect will actually perform the uniq and DNS resolution for you.

Requires: netselect, curl, sort, uniq, grep

nmap -T4 -sP 192.168.2.0/24 && egrep "00:00:00:00:00:00" /proc/net/arp
nmap -sP <subnet>.* | egrep -o '[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+' > results.txt ; for IP in {1..254} ; do echo "<subnet>.${IP}" ; done >> results.txt ; cat results.txt | sort -n -t . -k 1,1 -k 2,2 -k 3,3 -k 4,4 | uniq -u
lynx --dump --source http://www.xkcd.com | grep `lynx --dump http://www.xkcd.com | egrep '(png|jpg)'` | grep title | cut -d = -f2,3 | cut -d '"' -f2,4 | sed -e 's/"/|/g' | awk -F"|" ' { system("display " $1);system("echo "$2); } '
2009-12-03 18:53:57
Functions: awk cut egrep grep
-1

Same thing just a different way to get there. You will need lynx

egrep -i "somepattern" `find . -type f -print`
find . -type f | perl -lne 'print if -T;' | xargs egrep "somepattern"
egrep 'https?://([[:alpha:]]([-[:alnum:]]+[[:alnum:]])*\.)+[[:alpha:]]{2,3}(:\d+)?(/([-\w/_\.]*(\?\S+)?)?)?'
2009-11-28 15:41:42
User: putnamhill
Functions: egrep
5

For the record: I didn't build this. Just shared what I found that worked. Apologies to the original author!

I decided I should fix the case where http://example.com is not matched for the next time I need this. So I read rfc1035 and formalized the host name regex.

If anyone finds any more holes, please comment.

egrep "<link>|<title>" recenttracks.rss | awk 'ORS=NR%2?" ":"\n"' | awk -F "</title>" '{print $2, $1}' | sed -e 's/\<link\>/\<li\>\<a href\=\"/' -e 's/\<\/link\>/\">/' -e 's/\<title\>//' -e 's/$/\<\/a\>\<\/li\>/g' -e '1,1d' -e 's/^[ \t]*//'
2009-11-28 13:19:05
User: HerbT
Functions: awk egrep sed
3

Quick and kludgy rss parser for the recent tracks rss feed from last.fm. Extracts artist and track link.

lsmod | cut -d' ' -f1 | xargs modinfo | egrep '^file|^desc|^dep' | sed -e'/^dep/s/$/\n/g'
2009-11-17 02:13:34
User: mohan43u
2

Run this as root, it will be helpful to quickly get information about the loaded kernel modules.

geoip () { curl -s "http://www.geoiptool.com/?IP=$1" | html2text | egrep --color 'City:|IP Address:|Country:' }
2009-11-15 17:59:23
User: wizel
Functions: egrep
0

If used without arguments, returns own IP info.

If used with argument, returns info about the parsed argument.

ls -a | egrep "^\.\w"
2009-11-11 18:19:56
User: kulor
Functions: egrep ls
Tags: egrep ls dotfiles
-2

trying to copy all your dotfiles from one location to another, this may help

egrep -v "^[[:blank:]]*($|#|//|/\*| \*|\*/)" somefile
find ~/Maildir/ -mindepth 1 -type d | egrep -v '/cur$|/tmp$|/new$' | xargs
tail -F file | egrep --color 'pattern|$'
tail -f file | egrep --color=always $\|PATTERN
2009-10-15 13:08:30
User: sitaram
Functions: egrep file tail
Tags: color
-2

but you can't see the colors in that sample output :(

echo $X | egrep "^[0-9]+$"
egrep 'Failed password for invalid' /var/log/secure | awk '{print $13}' | uniq
2009-10-04 18:08:13
Functions: awk egrep
1

Work for me on CentOS, grep and print ip addresses of ssh bruteforce attempts

echo 127.0.0.1 | egrep -e '^(([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])\.){3}([01]?[0-9]{1,2}|2[0-4][0-9]|25[0-4])$'
2009-09-17 17:40:48
User: arcege
Functions: echo egrep
-1

Handles everything except octets with 255. Ran through ip generator with variable octet lengths.

function sepath { echo $PATH |tr ":" "\n" |sort -u |while read L ; do cd "$L" 2>/dev/null && find . \( ! -name . -prune \) \( -type f -o -type l \) 2>/dev/null |sed "s@^\./@@" |egrep -i "${*}" |sed "s@^@$L/@" ; done ; }
2009-09-11 15:03:22
User: mobidyc
Functions: cd echo egrep find read sed sort tr
Tags: bash ksh PATH
-1

search argument in PATH

accept grep expressions

without args, list all binaries found in PATH

function catv { egrep -v "^$|^#" ${*} ; }
2009-09-11 14:58:47
User: mobidyc
Functions: egrep
1

better integration.

works on all Unices

works one bash and ksh.

wget -nv http://en.wikipedia.org/wiki/Linux -O- | egrep -o "http://[^[:space:]]*.jpg" | xargs -P 10 -r -n 1 wget -nv
2009-08-31 18:37:33
User: syssyphus
Functions: egrep wget xargs
10

xargs can be used in this manner to download multiple files at a time, and xargs will in this case run 10 processes at a time and initiate a new one when the number running falls below 10.

curl -s http://www.commandlinefu.com/commands/browse|egrep '("Fin.*and"|<div class="command">.*</div>)'|sed 's/<[^<]*>//g'|ruby -rubygems -pe 'require "cgi"; $_=sprintf("\n\n%-100s\n\t#%-20s",CGI.unescapeHTML($_).chomp.strip, gets.lstrip) if $.%2'
2009-08-18 19:04:03
User: copremesis
Functions: egrep sed
1

just bored here at work ... if your are daring ... add '| bash' .... enjoy

require 'ruby'

diff <(cd /path-1; find . -type f -print | egrep -i '\.m4a$|\.mp3$') <(cd /path-2; find . f -print | egrep -i '\.m4a$|\.mp3$')
2009-08-17 00:49:31
User: drewk
Functions: cd diff egrep find
3

diff is designed to compare two files. You can also compare directories. In this form, bash uses 'process substitution' in place of a file as an input to diff. Each input to diff can be filtered as you choose. I use find and egrep to select the files to compare.

egrep "^lease" /var/lib/dhcp/db/dhcpd.leases |awk '{ print $2 }'
2009-08-14 07:31:00
User: peshay
Functions: awk egrep
0

You can use that to create a excludefile for nmap, to find hosts, with no DHCP lease in your DHCP range.

wget http://checkip.dyndns.org && clear && echo && echo My IP && egrep -o '([[:digit:]]{1,3}\.){3}[[:digit:]]{1,3}' index.html && echo && rm index.html