Some handy bash commands

On Linux shells, I always feel pretty crummy about getting around quickly via cd. So, in the spirit of Daniel's up command, here's a few other quick-directory commands to add to your .bashrc:

# up somesubdir
# Find a directory below this that matches the word provided
#   (locate-based) 
function down() {
    dir=""
    if [ -z "$1" ]; then
        dir=.
    fi
    dir=$(locate -n 1 -r $PWD.*/$1$)
    cd "$dir";
}

# cdd someglobaldir
# quickly change to a directory anywhere that matches  the word you typed.
#    best if your locatedb is in good shape
function cdd() {
    dir=""
    if [ -z "$1" ]; then
        dir=.
    fi
    dir=$(locate -n 1 -r $1$)
    cd "$dir";
}

Other variations that I tried:

 # Not breadth-first, so less fun sometimes
 function down2()
 {
     dir=""
     if [ -z "$1" ]; then
         dir=.
     fi
     dir=$(find . -type d -iname $1 | head -n 1)
     cd "$dir";
 
 }
 
 # Breadth-first, but really slow
 function down3()
 {
         # create a list of all directories in the current folder
         dirlist=( $(find . -maxdepth 1 -type d) )
         dirlist=( ${dirlist[@]:1} )             # exclude .
 
         # loop through the list
         while [ $dirlist ]
         do
                 # check the head of the list to see if it matches needle
                 val=${dirlist[0]}
                 found=`expr match "$val" ".*$1.*"`
                 if [ $found -gt 0 ]; then
                         # change dirs, we found the first match
                         cd "$val";
                         break    # done
                 else
                         # not found!
                         # scan that new directory for subdirs
                         appendlist=( $(find $val -maxdepth 1 -type d) )
                         appendlist=( ${appendlist[@]:1} )    # exclude .
                         # add those subdirs to the tail of the dirlist
                         dirlist=( ${dirlist[@]:1} ${appendlist[@]} )
 
                         # rinse, repeat
                 fi
         done
 
 }
 

Posted via web from Imported from http://mattie.net/blog

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[zemnmeez]

Zsh has glob features that do something like what you've done.