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quickly formats a fat partition. usefull for flash drives

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

Remove security limitations from PDF documents using ghostscript (for Windows)
#4345 also works under windows

check open ports without netstat or lsof

Count items in JSON array
Pipe any JSON to jq, then count with the appropiate expression and use the | length on the array

Show permissions of current directory and all directories upwards to /
Useful if a different user cannot access some directory and you want to know which directory on the way misses the x bit.

prints line numbers

How to trim a video using ffmpeg
Will trim the video to 4 seconds starting from the beginning. The -vcodec , -acodec options are required so that ffmpeg knows in what video/audio format you want for the new video.

Dump android contacts, sms
Crude, but works. Note for security, /data/ will be inaccessible unless your device has been *rooted*. On the other hand, if a device has been rooted, its data is now wide open to anyone with a USB cable and the above "one-liner". `adb` is one of the platform tools in the android SDK. To get SMS messages: $ adb pull /data/data/com.android.providers.telephony/databases/mmssms.db ; sqlite3 -batch

print all except first collumn


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