Commands using grep (1,935)

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Work out numerical last month
Work out last months numerical value.

Deleting / Ignoring lines from the top of a file
Output lines starting at line 2.

Prints new content of files
Useful to e.g. keep an eye on several logfiles.

Better git diff, word delimited and colorized
Define a git alias then git dcolor

for all who don't have the watch command
#Usage: watch timeinsecond "command"

set a reminder for 5 days in the future
setup for reminder in 5 days, added the date in the future. To run a job at 4pm three days from now, you would do at 4pm + 3 days, to run a job at 10:00am on July 31, you would do at 10am Jul 31 and to run a job at 1am tomorrow, you would do at 1am tomorrow.

Show the key code for keyboard events include the Fn keys
The keycodes are a result of pressing: Mute (Fn+F1) a

tcpdump sniff pop3,imap,smtp and http

find out how much space are occuipied by files smaller than 1024K
The command gives size of all files smaller than 1024k, this information, together with disk usage, can help determin file system parameter (e.g. block size) or storage device (e.g. SSD v.s. HDD). Note if you use awk instead of "cut| dc", you easily breach maximum allowed number of records in awk.

Matrix Style
Solves "tr" issues with non C-locales under BSD-like systems (like OS X)


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