Commands using tcpdump (52)

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Produce a pseudo random password with given length in base 64

Target a specific column for pattern substitution
Awk replaces every instance of foo with bar in the 5th column only.

Delete all but the latest 5 files, ignoring directories

script broadcast-pppoe-discover

diff color words

Show this month's calendar, with today's date highlighted
Explanation: * The date command evaluated to today's date with blank padded on the left if single digit * The grep command search and highlight today's date * The --before-context and --after-context flags displays up to 6 lines before and after the line containing today's date; thus completes the calendar. I have tested this command on Mac OS X Leopard and Xubuntu 8.10

List your MACs address

Grep colorized
Highlights the search pattern in red.

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

Convert CSV to JSON
Replace 'csv_file.csv' with your filename.


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