Shell Programming and Scripting

Hello people i need your help, am still new at unix, How do you find the number of subfolders in a certain or current directory??

This will list all of the directories in or below the directory /path

Code:

find /path -type d

You can pipe that to wc -l for a count of directories.

Code:

find /path -type d|wc -l

It will include /path in the output, so you might want/need to subtract one depending on what your expected result is.

Thank you everyone,but how do i put it in a code so that it is executable??

This would be one way.

Using vi, or your favorurite editor, edit a file (we'll call it ndirs.ksh). Add these lines to the file and write the file out:

Code:

#!/usr/bin/env ksh
# change ksh in the previous line to bash, or your preferred shell, if you'd 
# rather not use kshell. 

nd=$( find ${1:-$PWD} -type d | wc -l )     # count directories and save in var
printf "there are %d directories below %s\n" $nd ${1:-$PWD}    # print the var

exit

You now have a script: ndirs.ksh. At the command line, make the script executable with the command:

Code:

chmod 755 ndirs.ksh

Assuming you've been working in a scratch or development dirctory, copy the script to a directory in your PATH. Probably $HOME/bin:

Code:

cp ndirs.ksh ~/bin/

Now you can run the script from the command line:

Code:

ndirs.ksh
ndirs.ksh /tmp/foo

to get output like:

Code:

there are 1 directories below /tmp/foo

This is a very simple script without any error handling or other 'fluff' that would be needed for long term use.