Check These Out
Open up vi or vim at the first instance of a pattern in [file]. Useful if you know where you want to be, like "PermitRootLogin" in sshd_config. Also, vi +10 [file] will open up a file at line 10. VERY useful when you get "error at line 10" type of output.
Works on CentOS ad OpenBSD too, display time of accounts connection on a system, -p option print individual user's statistics.
swap out "80" for your port of interest. Can use port number or named ports e.g. "http"
Uses the shell builtin `declare` with the '-f' flag to output only functions to grep out only the function names.
You can use it as an alias or function like so:
alias shfunctions="builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'"
shfunctions () { builtin declare -f | command grep --color=never -E '^[a-zA-Z_]+\ \(\)'; }
I was looking for the fastest way to create a bunch of ansi escapes for use in echo -e commands throughout a lot of my shell scripts. This is what I came up with, and I actually stick that loop command in a function and then just call that at the beginning of my scripts to not clutter the environment with these escape codes, which can wreck havok on my terminal when I'm dumping the environment. More of a cool way to store escape ansi codes in an array. You can echo them like:
$ echo -e "${CC[15]}This text is black on bright green background."
I usually just use with a function:
$ # setup_colors - Adds colors to array CC for global use
$ # 30 - Black, 31 - Red, 32 - Green, 33 - Yellow, 34 - Blue, 35 - Magenta, 36 - Blue/Green, 37 - White, 30/42 - Black on Green '30\;42'
$ function setup_colors(){ declare -ax CC; for i in `seq 0 7`;do ii=$(($i+7));CC[$i]="\033[1;3${i}m";CC[$ii]="\033[0;3${i}m";done;CC[15]="\033[30;42m"; export R='\033[0;00m';export X="\033[1;37m"; };
$ export -f setup_colors
CC[15] has a background of bright green which is why it is separate. R resets everything, and X is my default font of bright white.
$ CC[15]="\033[30;42m"; R=$'\033[0;00m'; X=$'\033[1;37m'
Those are just my favorite colors that I often use in my scripts. You can test which colors by running
$ for i in $(seq 0 $((${#CC[@]} - 1))); do echo -e "${CC[$i]}[$i]\n$R"; done
See: http://www.askapache.com/linux-unix/bash_profile-functions-advanced-shell.html for more usage.
Apart from an exact copy of your recent contents, also keep all earlier versions of files and folders that were modified or deleted.
Inspired by EVACopy http://evacopy.sourceforge.net
An advantage is that this doesn't modify remained string at all. One can change {0,1} with {0,n} to drop several columns
