bashrc_gt

#!/bin/bash
# --------------------------------------------------------------------------
# History:
#   2014.7.19 : update : fix a bug when cd <dir> where <dir> contains blanks, e.g. "1\ 2"
# --------------------------------------------------------------------------


# dir_transport:
#alias ..='cd ../'
#alias ...='cd ../../'
#alias ....='cd ../../../'

## envir. vars
test -z "$GT_TABLE_ONLOAD" &&
export GT_TABLE_ONLOAD="$DIR_GT/Tables/default.tbl"

# Added by XU to enhence cd .
# Refer :http://aijazansari.com/2010/02/20/navigating-the-directory-stack-in-bash/
# An enhanced 'cd' - push directories
    # onto a stack as you navigate to it.
    #
    # The current directory is at the top
    # of the stack.
    #
    function stack_cd {
        if [ $# -eq 1 ]; then
            # use the pushd bash command to push the directory
            # to the top of the stack, and enter that directory
            pushd "$1" &> /dev/null || echo "-bash: cd: $1: No such directory"
        else
            # the normal cd behavior is to enter $HOME if no
            # arguments are specified
            pushd $HOME > /dev/null
        fi
    }
    # the cd command is now an alias to the stack_cd function
    #
    alias cd=stack_cd
    # Swap the top two directories on the stack
    #
    function swap {
        pushd > /dev/null
    }
    # s is an alias to the swap function
    alias s=swap
    # Pop the top (current) directory off the stack
    # and move to the next directory
    #
 function pop_stack {
        popd > /dev/null
    }
    alias p=pop_stack
    # Display the stack of directories and prompt
    # the user for an entry.
    #
    # If the user enters 'p', pop the stack.
    # If the user enters a number, move that
    # directory to the top of the stack
    # If the user enters 'q', don't do anything.
    #
    function display_stack
    {
        dirs -v
        echo -n "#: "
        read dir
        if [[ $dir = 'p' ]]; then
            pushd > /dev/null
        elif [[ $dir != 'q' ]]; then
            d=$(dirs -l +$dir);
            popd +$dir > /dev/null
            pushd "$d" > /dev/null
        fi
    }
    alias d=display_stack
    

function _gt() {
    COMPREPLY=()
    local cur=${COMP_WORDS[COMP_CWORD]}; #current word
    local com=${COMP_WORDS[COMP_CWORD-1]}; ##last word
    subcommands="-addwd -edit -new -load -reset -help -h -cdtable"
    tables=$(/bin/ls $DIR_GT/Tables)
    if [ "$com" == "gt"  ]; then
        if [ -n "$(echo $cur | /bin/grep \-)" ]; then
            COMPREPLY=($(compgen -W "$subcommands" -- $cur))
        else
            COMPREPLY=($(compgen -W "$tables" -- $cur))
        fi
    elif [ "$com" == "-load" ]; then
        COMPREPLY=($(compgen -W "$tables" -- $cur))
    fi
    return 0
}

complete -F _gt gt  ##link _gt call & gt command
##