Commands by llama (3)

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Always tail/edit/grep the latest file in a directory of timestamped files
zsh only If you have this command in your history, you can always re-run it and have it reference the latest file. The glob matches all timestamped files and then the resulting array is sorted by modification time (m) and then the first element in the sorted array is chosen (the latest)

Get max number of arguments
Get max number of arguments that can be accepted by the exec() system call.

add a gpg key to aptitute package manager in a ubuntu system
when we add a new package to a aptitude (the debian package manager) we need to add the gpg, otherwise it will show warning / error for missing key

Recursively Add Changed Files to Subversion
Extracted from http://www.howtogeek.com/wiki/Recursively_Add_Changed_Files_to_Subversion

Command for JOHN CONS
Would create a file with a meaningful title. Dedicated to John Cons, who is annoying us users. Merry Christmas!!!

flush memcached via netcat

silent/shh - shorthand to make commands really quiet
Sometimes I just want to run a command quietly but all that keyboard shifting makes my fingers hurt. This little function does the job eg.: $ if shh type less; then PAGER=less; fi

Bruteforce Synology NAS Logins with Hydra

Tail postfix current maillog and grep for "criteria"
Tail curren postfix maillog.

List only directories, one per line
Alternatively, $ ls -F | grep /\$ but will break on directories containing newlines. Or the safe, POSIX sh way (but will miss dotfiles): $ for i in *; do test -d "./$i" && printf "%s\n" "$i"; done


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