Commands by YouM (2)

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search string in _all_ revisions

Optimal way of deleting huge numbers of files
Using xargs is better than: $ find /path/to/dir -type f -exec rm \-f {} \; as the -exec switch uses a separate process for each remove. xargs splits the streamed files into more managable subsets so less processes are required.

Chrome sucks
How much memory is chrome sucking?

find established tcp connections without using netstat!!
Fast and easy way to find all established tcp connections without using the netstat command.

Using awk to sum/count a column of numbers.
Takes a input file (count.txt) that looks like: 1 2 3 4 5 It will add/sum the first column of numbers.

Make 'less' behave like 'tail -f'.
Using +F will put less in follow mode. This works similar to 'tail -f'. To stop scrolling, use the interrupt. Then you'll get the normal benefits of less (scroll, etc.). Pressing SHIFT-F will resume the 'tailling'.

move you up one directory quickly
In bash, this turns on auto cd. If a command is just a directory name, it cd's into that directory.

Display BIOS Information

Validate date, also a date within a leap year
Important to know: a valid date will return 0, otherwise 1!

display contents of a file w/o any comments or blank lines


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