Commands tagged netcat nc (3)

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Show permissions of current directory and all directories upwards to /
NB not 'namei -m .', as it slices the path you give it.

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"

Get current Xorg resolution via xrandr
Not sure if it works the same on any shell.

Sort installed rpms by decreasing size.
It's all said in the title.

Serve current directory tree at http://$HOSTNAME:8080/

shell function to underline a given string.
underline() will print $1, followed by a series of '=' characters the width of $1. An optional second argument can be used to replace '=' with a given character. This function is useful for breaking lots of data emitted in a for loop into sections which are easier to parse visually. Let's say that 'xxxx' is a very common pattern occurring in a group of CSV files. You could run $ grep xxxx *.csv This would print the name of each csv file before each matching line, but the output would be hard to parse visually. $ for i in *.csv; do printf "\n"; underline $i; grep "xxxx" $i; done Will break the output into sections separated by the name of the file, underlined.

Kill all processes belonging to a user

Search some text from all files inside a directory

Get movie length

convert plain .avi movies to .mpeg
works "out of the box" on ubuntu 8.10


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