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Display the list of all opened tabs from Firefox via a python one-liner and a shell hack to deal with python indentation.

You have to do that before : cd ~/.mozilla/firefox/<YOUR PROFILE> Require bash. If you use something else, you may use echo <CODE> | python Forked from ArkSeth python script.
This is sample output - yours may be different.
3

python2 <<< $'import json\nf = open("sessionstore.js", "r")\njdata = json.loads(f.read())\nf.close()\nfor win in jdata.get("windows"):\n\tfor tab in win.get("tabs"):\n\t\ti = tab.get("index") - 1\n\t\tprint tab.get("entries")[i].get("url")'

sputnick · 2009-12-28 21:56:05 7
command! -nargs=1 Vs vs <args>

Because entering ':' requires that you press shift, sometimes common command-line / mini-buffer commands will be capitalized by accident. Show Sample Output
This is sample output - yours may be different.
```
In .vimrc:

command! W w
command! -nargs=1 Vs vs <args>
command! -nargs=1 VS vs <args>
```
1

Create aliases for common vim minibuffer/cmd typos

tmsh · 2009-12-28 20:58:29 3
oneliner to open several times same application
This is sample output - yours may be different.
-3

for i in $(seq 5); do xpenguins & done

unixmonkey7635 · 2009-12-28 14:01:20 3
View entire process string

Depending on your installation, when you run ps you will only get the first 40 or so characters displayed. In order to view the entire string, use /usr/ucb/ps on Solaris.
This is sample output - yours may be different.
-2

/usr/ucb/ps -auxgww

sharfah · 2009-12-28 12:36:04 3
oneliner to open several times same application
This is sample output - yours may be different.
-3

for ((i=0;i<5;i++)) ; do xpenguins & done

gilran · 2009-12-28 12:10:33 3
find out how much space are occuipied by files smaller than 1024K

The command gives size of all files smaller than 1024k, this information, together with disk usage, can help determin file system parameter (e.g. block size) or storage device (e.g. SSD v.s. HDD). Note if you use awk instead of "cut| dc", you easily breach maximum allowed number of records in awk. Show Sample Output
This is sample output - yours may be different.
```
290545766
```
1

find dir -size -1024k -type f | xargs -d $'\n' -n1 ls -l | cut -d ' ' -f 5 | sed -e '2,$s/$/+/' -e '$ap' | dc

zhangweiwu · 2009-12-28 04:23:01 5
live ssh network throughput test

connects to host via ssh and displays the live transfer speed, directing all transferred data to /dev/null needs pv installed Debian: 'apt-get install pv' Fedora: 'yum install pv' (may need the 'extras' repository enabled) Show Sample Output
This is sample output - yours may be different.
```
88.2MB 0:00:15 [6.83MB/s] [    <=>            ]
```
28

yes | pv | ssh $host "cat > /dev/null"

opertinicy · 2009-12-27 21:34:23 30
oneliner to open several times same application

just replace the number 5 with the variable you want , and the xpenguins software with the one you want Show Sample Output
This is sample output - yours may be different.
```
gnu@robby:~$ i="0";  while [ $i  -lt  5 ]  ;  do xpenguins &  i=$[$i+1] ; done   
[10] 29014
[11] 29015
[12] 29016
[13] 29017
[14] 29018
gnu@robby:~$
```
-2

i="0"; while [ $i -lt 5 ] ; do xpenguins & i=$[$i+1] ; done

eastwind · 2009-12-27 21:05:33 3
Pause and Resume Processes

Add that and "cont () { ps -ec | grep $@ | kill -SIGCONT `awk '{print $1}'`; }" (without the quotes) to you bash profile and then use it to pause and resume processes safely
This is sample output - yours may be different.
1

stop () { ps -ec | grep $@ | kill -SIGSTOP `awk '{print $1}'`; }

iridium172 · 2009-12-27 19:40:09 76
Install MP4Box

# wget http://nchc.dl.sourceforge.net/project/gpac/GPAC/GPAC%200.4.5/gpac-0.4.5.tar.gz # wget http://nchc.dl.sourceforge.net/project/gpac/GPAC%20extra%20libs/GPAC%20extra%20libs%200.4.5/gpac_extra_libs-0.4.5.tar.gz # tar -zxf gpac-0.4.5.tar.gz # tar -zxf gpac_extra_libs-0.4.5.tar.gz # cd gpac_extra_libs # cp -r * ../gpac/extra_lib # cd ../gpac # chmod +x configure # yum install zlib* # ./configure # make lib # make apps # make install lib # make install # cp bin/gcc/libgpac.so /usr/lib Show Sample Output
This is sample output - yours may be different.
```
# wget http://nchc.dl.sourceforge.net/project/gpac/GPAC/GPAC%200.4.5/gpac-0.4.5.tar.gz
# wget http://nchc.dl.sourceforge.net/project/gpac/GPAC%20extra%20libs/GPAC%20extra%20libs%200.4.5/gpac_extra_libs-0.4.5.tar.gz

# tar -zxf gpac-0.4.5.tar.gz
# tar -zxf gpac_extra_libs-0.4.5.tar.gz
# cd gpac_extra_libs
# cp -r * ../gpac/extra_lib
# cd ../gpac
# chmod +x configure

# yum install zlib*

# ./configure
# make lib
# make apps
# make install lib
# make install
# cp bin/gcc/libgpac.so /usr/lib
```
-13

check output

svnlabs · 2009-12-27 05:28:01 3
Set Permission to user and group

Set Permission to user and group Show Sample Output
This is sample output - yours may be different.
```
Set Permission to user and group
```
-3

chown -R webuser:webgroup /var/www/vhosts/domain.com/httpdocs

svnlabs · 2009-12-27 05:25:53 3
wget ? server to server files transfer

wget ? server to server files transfer
This is sample output - yours may be different.
-2

wget -H -r ?level=1 -k -p http://www.domain.com/folder/

svnlabs · 2009-12-27 05:23:27 3
upload a file via ftp
This is sample output - yours may be different.
0

curl -u user:passwd -T /home/dir/local_file_to_upload ftp://your_host.com/subdir/

m33600 · 2009-12-26 02:48:05 3
floating point shell calculator
This is sample output - yours may be different.
0

calc() { awk 'BEGIN { OFMT="%f"; print '"$*"'; exit}'; }

cfajohnson · 2009-12-25 19:08:16 5
show how much diskspace all images in a given directory need
This is sample output - yours may be different.
0

find /home/bubo/ -type f $ -iname \*.jpg -print0 , -iname \*.png -print0 , -iname \*gif -print0 $ | du -cm --files0-from - | tail -1

bubo · 2009-12-25 16:21:46 3
Find all uses of PHP constants in a set of files
This is sample output - yours may be different.
-2

$class=ExampleClass; $path=src; for constant in `grep ' const ' $class.php | awk '{print $2;}'`; do grep -r "$class::$constant" $path; done

BluesDragon · 2009-12-24 11:32:24 4
floating point bash calculator w/o precision

terms inclosing '()' must be enclosed by "" (soft quotes) bash variables must be referenced: b $x/$y ugly bracket checking (balanced, fractions...) default precision 2 Show Sample Output
This is sample output - yours may be different.
```
b 6*7 -> 42
b "e(1)" 6 -> 2.718281
a=1; b=1/7; b $a/$b -> 0.14
```
0

b(){ echo "scale=${2:-2}; $1" | bc -l; }

dadi · 2009-12-23 23:44:31 9
List folders containing only PNGs
This is sample output - yours may be different.
2

find . -name '*png' -printf '%h\0' | xargs -0 ls -l --hide=*.png | grep -ZB1 ' 0$'

unixmonkey7586 · 2009-12-23 18:50:35 4
Recursive chmod all files and directories within the current directory
This is sample output - yours may be different.
5

chmod -R 774 .

cfajohnson · 2009-12-23 18:42:26 6
Find the location of the currently loaded php.ini file

Quick and easy way to find out which php.ini file is being used. Especially useful if you just need to find the location of the file for editing purposes. Show Sample Output
This is sample output - yours may be different.
```
[user@server ~]$ php -i |grep php.ini
Configuration File (php.ini) Path => /usr/local/lib
Loaded Configuration File => /usr/local/lib/php.ini
```
5

php -i | grep php.ini

jemmille · 2009-12-23 15:52:20 4
Recursive chmod all files and directories within the current directory

sometimes if directories are too deep, chmod -R fails... in those cases, a find comes in most handy :)
This is sample output - yours may be different.
-10

find . -print -exec chmod 777 {} \;

ringlerun · 2009-12-23 13:16:31 7
Typing the current date ( or any string ) via a shortcut as if the keys had been actually typed with the hardware keyboard in any application.

That works in all softs, CLI or GUI... I don't want to waste time to all the time typing the same stuff . So, I have that command in my window manager shortcuts ( meta+l ). All the window managers have editable shortcuts AFAIK. If not, or you don't want to use it that way, you can easily use the xbindkeys soft. I you're using kde4, you can run : systemsettings then open "inputs actions" and create a new shortcut. For Gnome take a look there : http://www.cyberciti.biz/faq/howto-create-keyboard-shortcuts-in-gnome/ A more advanced one, with strings and newlines : xvkbd -xsendevent -text "---8<-----\nToday date is: $(date +%Y%m%d)\n---8<-----" For complicated or long paste, you can feed xvkbd with a file : xvkbd -xsendevent -file <file> You can simulate ^C ( control+c ) too or others combinations of keys : xvkbd -text "\C\Ac" There's no man page nor help ( On my Archlinux distro ), but you can see online doc there : http://homepage3.nifty.com/tsato/xvkbd/ Show Sample Output
This is sample output - yours may be different.
```
20091225
```
14

xvkbd -xsendevent -text $(date +%Y%m%d)

sputnick · 2009-12-23 12:01:07 11
Recursive chmod all files and directories within the current directory
This is sample output - yours may be different.
-11

find | xargs chmod 777

tsiqueira · 2009-12-23 10:21:58 4
copy partition table from /dev/sda to /dev/sdb
This is sample output - yours may be different.
2

sfdisk -d /dev/sda | sed 's/sda/sdb/g' | sfdisk /dev/sdb

kobayashison · 2009-12-22 23:35:30 4
copy partition table from /dev/sda to /dev/sdb

*as long as the drives are exactly the same* then this command copies the partition table on /dev/sda to /dev/sdb
This is sample output - yours may be different.
-3

sfdisk /dev/sdb <(sfdisk -d /dev/sda| perl -pi -e 's/sda/sdb/g')

linuxrawkstar · 2009-12-22 22:45:41 3
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tar.gz with gpg-encryption on the fly

Create a encrypted tar.gz file from a directory on the fly. The encryption is done by GPG with a public key. The resulting filename is tagged with the date of creation. Very usefull for encrypted snapshots of folders.

shell equivalent of a boss button

Nobody wants the boss to notice when you're slacking off. This will fill your shell with random data, parts of it highlighted. Note that 'highlight' is the Perl module App::highlight, not "a universal sourcecode to formatted text converter." You'll also need Term::ANSIColor.

See system users

Sniffing network to generate a pcap file in CLI mode on a remote host and open it via local Wireshark ( GUI ).

Then hit ^C to stop, get the file by scp, and you can now use wireshark like this : $ wireshark /tmp/sniff.pcap If you have tshark on remote host, you could use that : $ wireshark -k -i

Set laptop display brightness

Run as root. Path may vary depending on laptop model and video card (this was tested on an Acer laptop with ATI HD3200 video). $ cat /proc/acpi/video/VGA/LCD/brightness to discover the possible values for your display.

mail with attachment

An easy one but nice to keep in mind.

Generate a random password 30 characters long

According to the gpg(1) manual: --gen-random 0|1|2 count Emit count random bytes of the given quality level 0, 1 or 2. If count is not given or zero, an endless sequence of random bytes will be emitted. If used with --armor the output will be base64 encoded. PLEASE, don't use this command unless you know what you are doing; it may remove precious entropy from the system! If your entropy pool is critical for various operations on your system, then using this command is not recommended to generate a secure password. With that said, regenerating entropy is as simple as: $ du -s / This is a quick way to generate a strong, base64 encoded, secure password of arbitrary length, using your entropy pool (example above shows a 30-character long password).

List dot-files and dirs, but not . or ..

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

return external ip

Get your ip address, hostname, ASN and geolocation information. If you want just one field as a text response you can also get that,eg curl ipinfo.io/ip

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