Commands by ujang (1)

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list files recursively by size

print file without duplicated lines usind awk
show file withou duplicated lines

floating point operations in shell scripts
using bc is for sissies. dc is much better :-D Polish notation will rule the world...

Print process run time, average CPU usage, and maximum memory usage on exit
Bash has a built-in time command which provides less functionality than the real time command. Thus we reference /usr/bin/time directly. Since the command isn't very easy to remember you could alias it to something like "cputime" or even just "time".

mp3 streaming

Follow tail by name (fix for rolling logs with tail -f)
If you use 'tail -f foo.txt' and it becomes temporarily moved/deleted (ie: log rolls over) then tail will not pick up on the new foo.txt and simply waits with no output. 'tail -F' allows you to follow the file by it's name, rather than a descriptor. If foo.txt disappears, tail will wait until the filename appears again and then continues tailing.

shell bash iterate number range with for loop

Tail a log-file over the network
This one is tried and tested for Ubuntu 12.04. Works great for tailing any file over http.

list files recursively by size

Search some text from all files inside a directory

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