Commands by unixmonkey7109

Commands by unixmonkey7109 (11)

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Return IP Address
This is sample output - yours may be different.
0

ifconfig -a| awk 'BEGIN{FS="[ :]+"} /Bcast/{print $4}'

unixmonkey7109 · 2009-12-05 00:18:24 8
generate random password

no need that useless cat.
This is sample output - yours may be different.
-2

tr -dc 'a-zA-Z0-9' < /dev/urandom | fold -w 10 | sed 1q

unixmonkey7109 · 2009-12-01 11:14:16 5
last.fm rss parser

you can just use one awk script to parse the rss feed. No need to pipe so many awk's and sed's. Its ugly and inefficient.
This is sample output - yours may be different.
2

awk '/<link>/{gsub(/.*<link>|<\/link>.*/,"");print "<li><a href=\042"$0"\042> "t"</a>" } /<title>/{gsub(/.*<title>|<\/title>.*/,"");t=$0 }' file

unixmonkey7109 · 2009-11-28 15:49:06 4
Match a URL

don't have to be that complicated
This is sample output - yours may be different.
-1

cho "(Something like http://foo.com/blah_blah)" | awk '{for(i=1;i<=NF;i++){if($i~/^(http|ftp):\/\//)print $i}}'

unixmonkey7109 · 2009-11-28 03:31:41 7
List files that DO NOT match a pattern

no need to use grep.
This is sample output - yours may be different.
-3

ls *[^p][^a][^t]* ; # or shopt -s extglob; ls !(*pattern*)

unixmonkey7109 · 2009-11-25 01:19:02 6
Sorted list of established destination connections

no need grep. its redundant when awk is present.
This is sample output - yours may be different.
3

netstat | awk '/EST/{print $5}' | sort

unixmonkey7109 · 2009-11-24 14:32:12 7
Find in all files in the current directory, just a find shorthand

if its the current directory, no need find command. just grep will do
This is sample output - yours may be different.
0

grep -H -n "pattern" *

unixmonkey7109 · 2009-11-24 08:48:38 4
Find all dot files and directories
This is sample output - yours may be different.
6

echo .*

unixmonkey7109 · 2009-11-21 04:07:28 6
remove files and directories with acces time older than a given date

touch a dummy file with the specified date, then use find with -anewer .
This is sample output - yours may be different.
2

touch -t "YYYYMMDDhhmm.ss" dummy ; find . -anewer dummy

unixmonkey7109 · 2009-11-21 04:05:45 5
Show sorted list of files with sizes more than 1MB in the current dir

GNU find + sort
This is sample output - yours may be different.
0

find . -maxdepth 1 -type f -size +1M -printf "%f:%s\n" | sort -t":" -k2

unixmonkey7109 · 2009-11-21 03:47:39 4
Short Information about loaded kernel modules
This is sample output - yours may be different.
4

awk '{print $1}' "/proc/modules" | xargs modinfo | awk '/^(filename|desc|depends)/'

unixmonkey7109 · 2009-11-20 13:06:25 4

What's this?

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Rot13 using the tr command

rot13 maps a..mn..z (A..MN..Z) to n..za..m (n..za..m) and so does this alias.

Run a script in parrallel over ssh

Runs a local script over ssh assuming ssh keys are in place. -P argument prints results to stdout. # Uses - https://code.google.com/p/parallel-ssh/

List programs with open ports and connections

I prefer to use this and not the -n variety, so I get DNS-resolved hostnames. Nice when I'm trying to figure out who's got that port open.

Get AWS temporary credentials ready to export based on a MFA virtual appliance

You might want to secure your AWS operations requiring to use a MFA token. But then to use API or tools, you need to pass credentials generated with a MFA token. This commands asks you for the MFA code and retrieves these credentials using AWS Cli. To print the exports, you can use: `awk '{ print "export AWS_ACCESS_KEY_ID=\"" $1 "\"\n" "export AWS_SECRET_ACCESS_KEY=\"" $2 "\"\n" "export AWS_SESSION_TOKEN=\"" $3 "\"" }'` You must adapt the command line to include: * $MFA_IDis ARN of the virtual MFA or serial number of the physical one * TTL for the credentials

Show drive names next to their full serial number (and disk info)

As of this writing, this requires a fairly recent version of util-linux, but is much simpler than the previous alternatives. Basically, lsblk gives a nice, human readable interface to all the blkid stuff. (Of course, I wouldn't recommend this if you're going to be parsing the output.) This command takes all the fun out of the previous nifty pipelines, but I felt I ought to at least mention it as an alternative since it is the most practical.

Execute a command without saving it in the history

Yes, by correctly setting the HIST* variables you can make certain commands not saved in history. But that's complicated and easy to make a mistake. If you set HISTFILE= to blank, nothing in your current shell session will be saved in history. Although this is not a precise answer to the subject, but it's very simple.

Verbosely delete files matching specific name pattern, older than 15 days.

Run skype using your GTK theme

I use this to make skype blend better into my desktop :) --disable-cleanlooks might not be nescessary to achieve the wanted effect.

colored tail

Fork bomb (don't actually execute)

Retrieved from: https://en.wikipedia.org/wiki/Fork_bomb More info: http://stackoverflow.com/questions/991142/how-does-this-bash-fork-bomb-work

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