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This works just as well for SMTP. You could run this on your mail server to watch e-mail senders and recipients:
tcpdump -l -s0 -w - tcp dst port 25 | strings | grep -i 'MAIL FROM\|RCPT TO'
Remove ( color / special / escape / ANSI ) codes, from text, with sed
Credit to the original folks who I've copied this command from.
The diff here is:
Theirs: [m|K]
Theirs is supposed to remove \E[NUMBERS;NUMBERS[m OR K]
This statement is incorrect in 2 ways.
1. The letters m and K are two of more than 20+ possible letters that can end these sequences.
2. Inside []'s , OR is already assumed, so they are also looking for sequences ending with | which is not correct.
This : [a-zA-Z]
This resolves the "OR" issue noted above, and takes care of all sequences, as they all end with a lower or upper cased letter.
This ensures 100% of any escape code 'mess' is removed.
Get the longest match of file extension (Ex. For 'foo.tar.gz', you get '.tar.gz' instead of '.gz')
If you have GNU findutils, you can get only the file name with
find /some/path -type f -printf '%f\n'
instead of
find /some/path -type f | gawk -F/ '{print $NF}'
Returns the version of the kernel module specified as "MODULENAME", when available.
Change your Desktop background/wallpaper with feh lightweight command.
fill background directory with appropriate content.
alias speedtest='wget --output-document=/dev/null http://speedtest.wdc01.softlayer.com/downloads/test500.zip'