I'm writing a shell script that is supposed to take in one parameter (a directory name) and display how many files, directories, readable files, writable files and executable files are in that directory. If a parameter isn't given when you run it, its supposed to display an error message and abort. If the given parameter doesn't exist it should also display an error message and abort. Otherwise it should display the above info. I cannot for the life of me get it to run. Here is what I have, please help!:   #!/bin/csh   $1   set file=$1       if ($file==0)then             echo usage: assignment6.sh <directory_name>             exit0       else           if (-e $file && -r $file) then                echo Number of Directories: `ls | wc -w`                echo Number of Files: `ls -d */ | wc -w`                echo Number of Readable files: `find * -type f -or -type d -maxdepth 0 -perm +u=r | wc -w`                echo Number of Writable files: `find * -type f -or -type d -maxdepth 0 -perm +u=w | wc -w`                echo Number of Executable files: `find * -type f -or -type d -maxdepth 0 -perm +u=x | wc -w`            else                if (! -e $file) echo No such directory.                exit 0            endif       endif exit 0
Shell script with directory input
shell script;csh