4.10 Shell script -- swapdir

4.10 Shell script -- swapdir

Using a text editor, create a shell program. Your shell program will probably need to use cut, ls, grep, paste, wc, cat, hostname, and cal. It will probably also use pipes, redirection, variables, and command substitution.

Call your shell script swapdir.

Your program should do the following:

1. "Display" the number of days in the current month. For example:

   September 1996 has 30 days
   

2. "Display" the number of directories in the root directory. For example:

   The root directory on gort has 12 directories
   

   Make sure that you use the hostname command to get the name of the system you are on.
3. "Display" the root directory in the following format. This is what the command

   username@gort ~ $ ls -l /
   

   gives:

   drwxr-xr-x  2 root    2048 Jun 30 14:26 bin
   drwxr-xr-x  2 root     512 Jun  2 15:59 bsd-src
   -rw-r--r--  1 root  147456 Sep  7 14:25 core
   -rw-r--r--  1 root     925 Apr  8 18:00 dflt.DECterm
   drwxr-xr-x  3 root    3072 Sep  8 14:45 dev
   drwxr-xr-x  6 root    6656 Sep  9 22:25 etc
   lrwxr-xr-x  1 root       7 Feb 24  1993 lib -> usr/lib
   drwxr-xr-x  2 root    8192 Feb 24  1992 lost+found
   drwxr-xr-x  2 root     512 Aug  7  1992 mnt
   drwxr-xr-x  2 root     512 Feb 24  1993 opr
   drwxr-xr-x  3 root     512 Aug  3 12:44 public
   lrwxr-xr-x  1 root       7 Feb 24  1993 sys -> usr/sys
   drwxrwxrwt  5 root    1024 Sep 12 18:46 tmp
   -rw-r--r--  1 root   11568 Jul 24  1992 ultrixboot
   drwxr-xr-x 27 root    1024 Jun 10 11:28 usr
   drwxr-xr-x  9 root     512 Aug 19 15:43 usr2
   -rwxr-xr-x  1 root 3448280 Feb 24  1993 vmunix
   

   This is what I would like your output to look like:

   September 1993 has 30 days
   The root directory on gort has 12 directories
   
      2048 r-x  2 14:26 bin
       512 r-x  2 15:59 bsd-src
      3072 r-x  3 14:45 dev
      6656 r-x  6 22:25 etc
      8192 r-x  2  1992 lost+found
       512 r-x  2  1992 mnt
       512 r-x  2  1993 opr
       512 r-x  3 12:44 public
      1024 rwt  5 18:46 tmp
      1024 r-x 27 11:28 usr
       512 r-x  9 15:43 usr2
   

   Please note that the output only contains the directories.

Make a printout of your output and shell script, mark it with:

your name
TABER CIS137
Lab 4.10: Shell script --- dir

Please turn your lab to Louis Taber or to Pima Community College employee in room A-115 of the Santa Rita Building. Ask them to place it in the dark blue folder in Louis Taber's mailbox.

4.10 Shell script -- swapdir