├── scripts
    └── rmhost
├── README.md
└── install.sh


/scripts/rmhost:
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 1 | #!/bin/bash
 2 | 
 3 | host="$1"
 4 | 
 5 | [ $# -eq 0 ] && { echo "Usage: rmhost HOSTNAME"; exit 1; }
 6 | 
 7 | ips=$(host "$host" | awk -F'address' '{ print $2}' | sed -e 's/^ //g')
 8 | ssh-keygen -R "$host"
 9 | 
10 | for ip in $ips; do
11 | 	ssh-keygen -R "$ip"
12 | done
13 | 


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/README.md:
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 1 | Script utilities
 2 | ================
 3 | 
 4 | Script utilities to be used as system commands
 5 | 
 6 | ## Usage
 7 | 
 8 | ### Method one
 9 | 
10 | Download specific scripts from the ````scripts```` directory to your path.
11 | 
12 | ### Method two
13 | 
14 | Clone this repository and run ````./install.sh [-p PATH] [-b] [SCRIPT1 [SCRIPT2]]````
15 | 
16 | Don't pass any scriptname for installing all scripts
17 | 
18 | Put ````source PATH/utilities.sh```` in your bash login script
19 | 
20 | ````PATH```` is ````/usr/bin```` by default.


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/install.sh:
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  1 | #!/bin/bash
  2 | 
  3 | # Script to install utilities
  4 | # Author: Márk Sági-Kazár (sagikazarmark@gmail.com)
  5 | # This script install all or specific utilities
  6 | #
  7 | # Version: 1.0
  8 | 
  9 | DIR=$(cd `dirname $0` && pwd)
 10 | path="${path:-/usr/bin}"
 11 | BUILD=${BUILD:-0}
 12 | 
 13 | # Echo colored text
 14 | e()
 15 | {
 16 | 	local color="\033[${2:-34}m"
 17 | 	echo -e "$color$1\033[0m"
 18 | }
 19 | 
 20 | ## Exit error
 21 | ee()
 22 | {
 23 | 	local exit_code="${2:-1}"
 24 | 	local color="${3:-31}"
 25 | 
 26 | 	e "$1" "$color"
 27 | 	exit $exit_code
 28 | }
 29 | 
 30 | ## Set path
 31 | setpath()
 32 | {
 33 | 	[ -z "$1" ] || path="$1"
 34 | 
 35 | 	if [ -d $path -a -w $path ]; then
 36 | 		e "Path is set to $path"
 37 | 	else
 38 | 		ee "Please specify a valid and writable path"
 39 | 	fi
 40 | }
 41 | 
 42 | # Checking root access
 43 | if [ $EUID -ne 0 ]; then
 44 | 	e "You are not running this script as root!" 31
 45 | fi
 46 | 
 47 | 
 48 | while getopts p:b option; do
 49 | 	case "${option}" in
 50 | 		p )
 51 | 			setpath ${OPTARG}
 52 | 			;;
 53 | 		b )
 54 | 			BUILD=1
 55 | 			;;
 56 | 	esac
 57 | done
 58 | 
 59 | shift $((OPTIND-1))
 60 | 
 61 | 
 62 | if [[ -z "$scripts" && $BUILD -eq 0 ]]; then
 63 | 	e "Installing all scripts"
 64 | 	scripts=("$DIR/scripts"/*)
 65 | else
 66 | 	IFS=' ' read -a scripts <<< "${scripts}"
 67 | fi
 68 | 
 69 | 
 70 | if [ $BUILD -eq 1 ]; then
 71 | 	e "Compiling all scripts"
 72 | 	BUILD="#!/bin/bash\n\n# Compiled script from several utilities.\n# Path: $path\n# Date: $(date +"%Y-%m-%d %H:%M:%S")\n"
 73 | 
 74 | 	for script in "${scripts[@]}"; do
 75 | 		script=`basename $script`
 76 | 		if [[ -f "$DIR/scripts/$script" && -s "$DIR/scripts/$script" ]]; then
 77 | 			e "\nCompiling $script"
 78 | 			BUILD="$BUILD\n\n$script()\n{\n"
 79 | 
 80 | 			while read line; do
 81 | 				if [[ "$line" == \#* || "$line" == "" ]]; then
 82 | 					continue
 83 | 				fi
 84 | 
 85 | 				line="${line//exit/return}"
 86 | 				BUILD="$BUILD$line\n"
 87 | 			done < "$DIR/scripts/$script"
 88 | 			BUILD="$BUILD}"
 89 | 
 90 | 			e "$script compiled" 32
 91 | 		else
 92 | 			e "\nScript $script not found or empty" 31
 93 | 		fi
 94 | 	done
 95 | 
 96 | 	echo -e "$BUILD" > "$path/utilities.sh"
 97 | 
 98 | 	if [ ! -x "$path/utilities.sh" ]; then
 99 | 		e "\nAdding execute permission to $path/utilities.sh"
100 | 		chmod +x "$path/utilities.sh" || e "Cannot add execute permission to $path/utilities.sh" 31
101 | 	fi
102 | 
103 | 	grep -R "[ -f $path/utilities.sh ] && source $path/utilities.sh" /etc/bash.bashrc &> /dev/null
104 | 	[ $? -eq 0 ] || echo -e "[ -f $path/utilities.sh ] && source $path/utilities.sh" >> /etc/bash.bashrc
105 | 
106 | 
107 | 	e "\nCompilation done." 32
108 | else
109 | 	for script in "${scripts[@]}"; do
110 | 		script=`basename $script`
111 | 		if [[ -f "$DIR/scripts/$script" && -s "$DIR/scripts/$script" ]]; then
112 | 			e "\nInstalling $script"
113 | 			cp -r "$DIR/scripts/$script" "$path" || e "Installing $script failed" 31
114 | 
115 | 			if [ ! -x "$path/$script" ]; then
116 | 				e "Adding execute permission to $script"
117 | 				chmod +x "$script" || e "Cannot add execute permission to $script" 31
118 | 			fi
119 | 			e "$script installed" 32
120 | 		else
121 | 			e "\nScript $script not found" 31
122 | 		fi
123 | 	done
124 | 	e "\nInstallation done." 32
125 | fi
126 | 


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