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get detailed info about a lan card on HP-UX 11.31

When was your OS installed?

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" }

Quickly create an alias for changing into the current directory
Put the function in your .bashrc and use "map [alias]" to create the alias you want. Just be careful to not override an existing alias.

Calculate days on which Friday the 13th occurs (inspired from the work of the user justsomeguy)
Friday is the 5th day of the week, monday is the 1st. Output may be affected by locale.

gpg decrypt a file
gpg command to decrypt a previously encrypted file on the command line. Can be optionally made into an alias: alias decrypt='gpg --output foo.txt --decrypt foo.txt.pgp'

Fast command-line directory browsing
Not really alternative, just giving a different behavior listing current directory if no directory given.

List programs with open ports and connections
I prefer to use this and not the -n variety, so I get DNS-resolved hostnames. Nice when I'm trying to figure out who's got that port open.

get all Google ipv4/6 subnets for a iptables firewall for example (updated version)
google has added 2 more netblocks...

enable all bash completions in gentoo


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