bash shell中的快速目录导航

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CDPATH    The search path for the cd command. This is a colon-separated
          list of directories in which the shell looks for destination
          directories specified by the cd command.

export CDPATH=/Project/Warnest:~/Dropbox/Projects/ds

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j ~/Pictures

j Pic

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# starting point
$ pwd
/Project/Warnest/docs
# add second dir and change to it
$ pushd ~/Dropbox/Projects/ds/test
~/Dropbox/Projects/ds/test /Project/Warnest/docs
# prove we're in the right place
$ pwd
~/Dropbox/Projects/ds/test
# swap directories
$ pushd
/Project/Warnest/docs ~/Dropbox/Projects/ds/test

function pd()
{
    if [[ $# -ge 1 ]];
    then
        choice=""
    else
        dirs -v
        echo -n "? "
        read choice
    fi
    if [[ -n $choice ]];
    then
        declare -i cnum="$choice"
        if [[ $cnum != $choice ]];
        then #choice is not numeric
            choice=$(dirs -v | grep $choice | tail -1 | awk '{print }')
            cnum="$choice"
            if [[ -z $choice || $cnum != $choice ]];
            then
                echo "$choice not found"
                return
            fi
        fi
        choice="+$choice"
    fi
    pushd $choice
}

# same as pushd +1
$ pd 1

# show a prompt, choose by number
$ pd
 0 ~/Dropbox/Projects/ds/test
 1 /Project/Warnest/docs
 2 /tmp
? 2
/tmp ~/Dropbox/Projects/ds/test /Project/Warnest/docs

# or choose by substring match
$ pd
 0 /tmp
 1 ~/Dropbox/Projects/ds/test
 2 /Project/Warnest/docs
? doc
/Project/Warnest/docs /tmp ~/Dropbox/Projects/ds/test

# substring without prompt
$ pd test
~/Dropbox/Projects/ds/test /Project/Warnest/docs /tmp

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alias wdoc='cd ~/Project/Warnest/docs'
alias dstest='cd ~/Dropbox/Projects/ds/test'

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pushd -n /Project/Warnest/docs/
pushd -n ~/Dropbox/Projects/ds/test/

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0  ~/Documents/onedir
1  ~/Music/anotherdir
2  ~/Music/thirddir
3  ~/etc/etc

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alias dirs='dirs -v'
pd () 
{ 
    if [ -n "" ]; then
        pushd "${1/#[0-9]*/+}";
    else
        pushd;
    fi > /dev/null
}

$ PS1='\w$ '   ## just for demo purposes
~$ pd ~/Documents/data
~/Documents/data$ pd ../spec
~/Documents/spec$ pd ~/Dropbox/Public/
~/Dropbox/Public$ pd /tmp
/tmp$ pd /etc/defaults/
/etc/defaults$ dirs
 0  /etc/defaults
 1  /tmp
 2  ~/Dropbox/Public
 3  ~/Documents/spec
 4  ~/Documents/data
 5  ~
/etc/defaults$ pd 2
~/Dropbox/Public$ dirs
 0  ~/Dropbox/Public
 1  ~/Documents/spec
 2  ~/Documents/data
 3  ~
 4  /etc/defaults
 5  /tmp
~/Dropbox/Public$ pd 4
/etc/defaults$ dirs
 0  /etc/defaults
 1  /tmp
 2  ~/Dropbox/Public
 3  ~/Documents/spec
 4  ~/Documents/data
 5  ~
/etc/defaults$ pd 3
~/Documents/spec$ popd
~/Documents/data ~ /etc/defaults /tmp ~/Dropbox/Public
~/Documents/data$ 

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mkdir "$HOME/Bookmarks"
ln -s /tmp "$HOME/Bookmarks/testdir"

function ccd() { cd $(readlink "$HOME/Bookmarks/") ; }

ccd testdir && echo $PWD
# gives /tmp

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alias ..='cd ..'
alias ...='cd ../..'
alias ....='cd ../../..'
alias .....='cd ../../../..'

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# function to do `cd` using `xd`
# -g turns generalized directory search command processing on
# which improves the whole thing a bit
f() 
{
        cd `/usr/bin/xd -g $*`
}

# change to /var/log/a* (gives you a list to choose from)    
f vla
# to skip the list and go directly to /var/log/apache2
f vlapach

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soffice /P*/W*/*/mydoc*

soffice /Project/Warnest/docs/mydoc.odt

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z docs
z ds

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back () {  # go to previous visited directory
        cd - || exit
}

up () {  # go to parent directory
        cd ..|| exit
}

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export dir1=/Project/Warnest/docs/
export dir2= ~/Dropbox/Projects/ds/test/
cd $dir1
cd $dir2

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vi ~/.profile
alias dir1='cd /myhome/onedir'
alias dir2='cd /jimmy/anotherdir'

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anc a /Project/Warnest/docs/ ~/Dropbox/Projects/ds/test/

anc Warn

anc ds test

anc i

anc Pro[TAB]