Commands by virtualshock (5)

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Use wget to download one page and all it's requisites for offline viewing

count of down available ips

List the size of all sub folders and files from the current location, with sorting

List top 20 IP from which TCP connection is in SYN_RECV state
List top 20 IP from which TCP connection is in SYN_RECV state. Useful on web servers to detect a syn flood attack. Replace SYN_ with ESTA to find established connections

Convert seconds to [DD:][HH:]MM:SS
Converts any number of seconds into days, hours, minutes and seconds. sec2dhms() { declare -i SS="$1" D=$(( SS / 86400 )) H=$(( SS % 86400 / 3600 )) M=$(( SS % 3600 / 60 )) S=$(( SS % 60 )) [ "$D" -gt 0 ] && echo -n "${D}:" [ "$H" -gt 0 ] && printf "%02g:" "$H" printf "%02g:%02g\n" "$M" "$S" }

Find files recursively that were updated in the last hour ignoring SVN files and folders.
Find files recursively that were updated in the last hour ignoring SVN files and folders. Incase you do a full svn up on accident.

Randomize lines in a file
Works in sort (GNU coreutils) 7.4, don't know when it was implemented but sometime the last 6 years.

Remote mysql dump all databases with ssh

Search some text from all files inside a directory

Complex string encoding with sed
Pipe | avoid escaping occurences problems in using sed and make it easier to use


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