Commands by guillaume (2)

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Show display adapter, available drivers, and driver in use

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" }

Mount a partition from within a complete disk dump
Suppose you made a backup of your hard disk with dd: dd if=/dev/sda of=/mnt/disk/backup.img This command enables you to mount a partition from inside this image, so you can access your files directly. Substitute PARTITION=1 with the number of the partition you want to mount (returned from sfdisk -d yourfile.img).

determine if tcp port is open
@putnamhill, no need if statement in that case. && is a AND and || is a OR

Find the package that installed a command

Get file access control list

convert a mp4 video file to mp3 audio file (multiple files)

find both total size and number of files below any given svn directory
afaik, svn doesn't have a good, scriptable way of telling you these two basic pieces of information.

list all file extensions in a directory
Works on current directory, with built-in sorting.

Display connections histogram
Displays a connection histogram of active tcp connections. Works even better under an alias. Thanks @Areis1 for sharing this one.


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