Commands by thomasba (1)

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commandlinefu.com is the place to record those command-line gems that you return to again and again. That way others can gain from your CLI wisdom and you from theirs too. All commands can be commented on, discussed and voted up or down.

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Look for English words in /dev/urandom
* to get the English dictionary: wget http://www.mavi1.org/web_security/wordlists/webster-dictionary.txt

Recursive cat - concatenate files (filtered by extension) across multiple subdirectories into one file
Useful if you have to put together multiple files into one and they are scattered across subdirectories. For example: You need to combine all .sql files into one .sql file that would be sent to DBAs as a batch script. You do get a warning if you create a file by the same extension as the ones your searching for. find . -type f -name *.sql -exec cat {} > BatchFile.txt \;

Create a DOS floppy image
mount with: mount -t msdos -o loop ./floppy.img /tmp/mnt

Find files containing string and open in vim
I often use "vim -p" to open in tabs rather than buffers.

cp the file
Copy the file with the given .extension at the source file's location. Eliminates the typing of long paths again and again.

Updating the status on identi.ca using curl.
identica is an open source social networking and micro-blogging service. Based on Laconica, a micro-blogging software package built on the OpenMicroBlogging specification. http://identi.ca/

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

Auto download Ubuntu 10.04 LTS with super fast zsync
Need to have rc iso pre-downloaded before running command.

Quick HTML image gallery from folder contents with Perl
This includes a title attribute so you can see the file name by hovering over an image. Also will hoover up any image format - jpg, gif and png.

Run a command as root, with a delay
$ sleep 1h ; sudo command or $ sudo sleep 1h ; sudo command won't work, because by the time the delay is up, sudo will want your password again.

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