Commands by mitzip

Commands by mitzip (4)

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Restore deleted file from GIT repository

This command will automatically find the latest version of the file that was deleted and restore it to it's previous location. If, of course, your file was kept in a git repository... I found this command on http://stackoverflow.com/a/1113140
This is sample output - yours may be different.
2

git checkout $(git rev-list -n 1 HEAD -- "$file")^ -- "$file"

mitzip · 2012-08-23 02:33:22 6
Remove all unused kernels with apt-get

This will remove all installed kernels on your debian based install, except the one you're currently using. From: http://tuxtweaks.com/2009/12/remove-old-kernels-in-ubuntu/comment-page-1/#comment-1590
This is sample output - yours may be different.
4

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/$.*$-$[^0-9]\+$/\1/")"'/d;s/^[^ ]* [^ ]* $[^ ]*$.*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge

mitzip · 2010-06-10 20:33:32 6
Recursively execute command on directories (.svn, permissions, etc)

The above command will set the GID bit on all directories named .svn in the current directory recursively. This makes the group ownership of all .svn folders be the group ownership for all files created in that folder, no matter the user. This is useful for me as the subversion working directory on my server is also the live website and needs to be auto committed to subversion every so often via cron as well as worked on by multiple users. Setting the GID bit on the .svn folders makes sure we don't have a mix of .svn metadata created by a slew of different users.
This is sample output - yours may be different.
1

find . -type d -name .svn -exec chmod g+s "{}" \;

mitzip · 2010-04-27 16:51:00 22
Resize all JPEGs in a directory

This command requires the imagemagick libraries and will resize all files with the .jpg extension to a width of 1024 pixels and will keep the same proportions as the original image.
This is sample output - yours may be different.
1

mogrify -resize 1024 *.jpg

mitzip · 2009-02-11 00:01:29 15

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Download and install the newest dropbox beta

Uninstall bloatware on your android device without root.

List all packages with: pm list packages|cut -d: -f2

Given process ID print its environment variables

To have only unique lines in a file

Emulating netcat -e (netcat-traditional or netcat-openbsd) with the gnu-netcat

Then just nc servername 2600 and ./script.sh kill the client with ctrl+c. You can reconnect several times. kill the server with exit

Increment the filename of png in a given directory by one

Find the package that installed a command

connects to a serial console

e.g., 'screen -L /dev/ttyUSB0 38400' listens to your Holux M-241 GPS logger and turns on automatic logging

Which processes are listening on a specific port (e.g. port 80)

swap out "80" for your port of interest. Can use port number or named ports e.g. "http"

Test how well a web server handles concurrent connections and big load.

This command will execute 1000 requests to the http URL http://127.0.0.1:8000 handlink 100 concurent connections at a time. Then it will display statistics about the time that have been taken.

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