Commands by brando56894 (1)

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Find out the starting directory of a script
Invoked from within a shell script, this will print the directory in which the script resides. Doesn't depend on external tools, /proc/self/*, etc.. (`echo` is a shell builtin.) To see the *current working* directory of a script, use `pwd`.

Find default gateway

list all crontabs for users
additionally use "find /etc/cron*" for cronscripts

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" }

Sort netflow packet capture
Sort netflow packet capture by unique connections excluding source port.

See entire packet payload using tcpdump.

Find the package that installed a command

Monitor RAID IO Usage
Shows the IO of the raid sync

To print a specific line from a file
You can get one specific line during any procedure. Very interesting to be used when you know what line you want.

All IP connected to my host
find all computer connected to my host through TCP connection.


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