Ideas: [ADD] extract and exesudo functions to shell

[efargas]

extract function very useful:

function extract(){
    if [ $# -lt 2 ]; then
        if [ -f $1 ] ; then
            case $1 in
                *.tar.bz2)
                    tar xvjf $1
                    ;;
                *.tar.gz)
                    tar xvzf $1
                    ;;
                *.bz2)
                    bunzip2 $1
                    ;;
                *.rar)
                    unrar x $1
                    ;;
                *.gz)
                    gunzip $1
                    ;;
                *.tar)
                    tar xvf $1
                    ;;
                *.tbz2)
                    tar xvf $1
                    ;;
                *.tgz)
                    tar xvf $1
                    ;;
                *.zip)
                    unzip $1
                    ;;
                *.Z)
                    uncompress $1
                    ;;
                *.7z)
                    7z x $1
                    ;;
                *)
                    echo "'$1' cannot be extracted via extract"
                    return 1
                    ;;
            esac
        else
            echo "'$1' is not a valid file"
            return 2
        fi
    fi

    if [ $# -ge 2 ]; then
        if [ -f $1 ] ; then
            case $1 in
                *.tar.bz2)
                    if [ -d $2 ]; then
                        tar xvjf $1 -C $2
                    else
                        mkdir -p $2
                        tar xvjf $1 -C $2
                    fi
                    ;;
                *.tar.gz)
                    if [ -d $2 ]; then
                        tar xvzf $1 -C $2
                    else
                        mkdir -p $2
                        tar xvzf $1 -C $2
                    fi
                    ;;
                *.bz2)
                    bunzip2 $1
                    ;;
                *.rar)
                    if [ -d $2 ]; then
                        unrar x $1 $2
                    else
                        mkdir -p $2
                        unrar x $1 $2
                    fi
                    ;;
                *.gz)
                    gunzip $1
                    ;;
                *.tar)
                    if [ -d $2 ]; then
                        tar xvf $1 -C $2
                    else
                        mkdir -p $2
                        tar xvf $1 -C $2
                    fi
                    ;;
                *.tbz2)
                    if [ -d $2 ]; then
                        tar xvjf $1 -C $2
                    else
                        mkdir -p $2
                        tar xvjf $1 -C $2
                    fi
                    ;;
                *.tgz)
                    if [ -d $2 ]; then
                        tar xvzf $1 -C $2
                    else
                        mkdir -p $2
                        tar xvzf $1 -C $2
                    fi
                    ;;
                *.zip)
                    if [ -d $2 ]; then
                        unzip $1 -d $2
                    else
                        mkdir -p $2
                        unzip $1 -d $2
                    fi
                    ;;
                *.Z)
                    uncompress $1
                    ;;
                *.7z)
                    if [ -d $2 ]; then
                        7z x $1 -o $2
                    else
                        mkdir -p $2
                        7z x $1 -o $2
                    fi
                    ;;
                *)
                    echo "'$1' cannot be extracted via extract"
                    return 1
                    ;;
            esac
        else
            echo "'$1' is not a valid file"
            return 2
        fi
    fi
}
export -f extract

exesudo function:

Allows run shell functions with sudo

#!/usr/bin/env bash
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
# EXESUDO
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ #
#
# Purpose:
# -------------------------------------------------------------------- #
# Execute a function with sudo
#
# Params:
# -------------------------------------------------------------------- #
# $1:   string: name of the function to be executed with sudo
#
# Usage:
# -------------------------------------------------------------------- #
# exesudo "funcname" followed by any param
#
# -------------------------------------------------------------------- #
# Created 01 September 2012              Last Modified 02 September 2012

function exesudo ()
{
    ### ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##
    #
    # LOCAL VARIABLES:
    #
    ### ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##

    #
    # I use underscores to remember it's been passed
    local _funcname_="$1"

    local params=( "$@" )               ## array containing all params passed here
    local tmpfile="/dev/shm/$RANDOM"    ## temporary file
    local filecontent                   ## content of the temporary file
    local regex                         ## regular expression
    local func                          ## function source


    ### ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##
    #
    # MAIN CODE:
    #
    ### ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ##

    #
    # WORKING ON PARAMS:
    # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    #
    # Shift the first param (which is the name of the function)
    unset params[0]              ## remove first element
    # params=( "${params[@]}" )     ## repack array


    #
    # WORKING ON THE TEMPORARY FILE:
    # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

    content="#!/bin/bash\n\n"

    #
    # Write the params array
    content="${content}params=(\n"

    regex="\s+"
    for param in "${params[@]}"
    do
        if [[ "$param" =~ $regex ]]
            then
                content="${content}\t\"${param}\"\n"
            else
                content="${content}\t${param}\n"
        fi
    done

    content="$content)\n"
    echo -e "$content" > "$tmpfile"

    #
    # Append the function source
    echo "#$( type "$_funcname_" )" >> "$tmpfile"

    #
    # Append the call to the function
    echo -e "\n$_funcname_ \"\${params[@]}\"\n" >> "$tmpfile"


    #
    # DONE: EXECUTE THE TEMPORARY FILE WITH SUDO
    # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    sudo bash "$tmpfile"
    rm "$tmpfile"
}
export -f exesudo

[efargas]

both can be added to /etc/profile.d/ script or .bashrc to source it on every login