Commands by Tungmar

Commands by Tungmar (7)

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Run git gc in all git repositories bellow .

git gc should be run on all git repositories every 100 commits. This will help do do so if you have many git repositories ;-)
This is sample output - yours may be different.
0

find . -name .git -print0 | while read -d $'\0' g; do echo "$g"; cd "$g"; git gc --aggressive; cd -; done

Tungmar · 2013-05-09 08:03:23 8
Extract audio stream from an video file using mencoder

This command extracts the audio stream of the video in $file and stores it in a file where the original suffix is changed to .mp3
This is sample output - yours may be different.
1

mencoder "${file}" -of rawaudio -oac mp3lame -ovc copy -o "${file%.*}.mp3"

Tungmar · 2012-12-14 03:49:52 5
Make a playlistfile for mpg321 or other CLI player

A short variant if you have only one directory whit only audio files in it.
This is sample output - yours may be different.
2

ls -w 1 > list.m3u

Tungmar · 2010-08-27 07:03:17 4
Make a playlistfile for mpg321 or other CLI player

Supports other file formats.
This is sample output - yours may be different.
1

find /DirectoryWhereMyMp3sAre/ -regextype posix-egrep -iregex '.*?\.(ogg|mp3)' | sort > ~/mylist.m3u

Tungmar · 2010-08-27 06:58:22 4
Delete all flash cookies.

Maybe you want first check which files will be deleted: find $HOME -name '*.sol' -exec echo rm {} \;
This is sample output - yours may be different.
2

find $HOME -name '*.sol' -exec rm {} \;

Tungmar · 2010-08-27 06:38:16 7
Edit the list of to ignore files in the active directory

Standard command, but I always have to search for it... ;-)
This is sample output - yours may be different.
2

svn propedit svn:ignore .

Tungmar · 2010-08-26 06:57:17 4
Calculate md5 sums for every file in a directory tree
This is sample output - yours may be different.
6

find . -type f -exec md5sum {} \; > sum.md5

Tungmar · 2010-08-24 09:37:31 8

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Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

Generate a correct mac addr.

1) The last sed expression ensures the unicast/multicast bit is set to zero 2) The greedy space replacements are for portability across UNIX seds

Revert an SVN file to previous revision

Kudos to xakon.

5 Which Aliases

5 helpful aliases for using the which utility, specifically for the GNU which (2.16 tested) that is included in coreutils. Which is run first for a command. Same as type builtin minus verbosity $ alias which='{ command alias; command declare -f; } | command which --read-functions --read-alias' Which (a)lias $ alias whicha='command alias | command which --read-alias' Which (f)unction $ alias whichf='command declare -f | command which --read-functions' Which e(x)ecutable file in PATH $ alias whichx='command which' Which (all) alias, function, builtin, and files in PATH $ alias whichall='{ command alias; command declare -f; } | command which --read-functions --read-alias -a' # From my .bash_profile http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html

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

Cropping a video file in ffmpeg

Find usb device in realtime

Using this command you can track a moment when usb device was attached.

Run netcat to server files of current folder

list block devices

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

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