I need to Write a shell script that allows some system-administration tasks to be preformed automatically from a menu-driven interface. with automated following tasks:
Copy directory tree
Delete files or directories
Output Information (this part is done )
*Copy directory tree
The “Copy directory tree” selection should prompt for two arguments: src & dest.
The script then copies all the files from src, including all the subdirectories, to dest,
creating all the necessary sub-directories.
The script must perform necessary argument validation, assuming that the first argument may be either a directory name or the name of a regular file, while the second may be only a directory name.
my problem with this assignment is I can not read user input inside the "case" options.
I think I need to ask user to enter src and dest for copying the files.
this is my code so far
Code:
#!/bin/sh
clear
echo "\t `date "+%d/%m/%Y"`"
echo "\t Hostname Machine: `hostname`"
echo "\t user: `whoami` "
echo "\t M A I N - M E N U"
echo "\t 1.Copey Directory Tree"
echo "\t 2.Delete Files or Directories"
echo "\t 3.Output Information"
while true ; do
echo -n "\t Please enter an option [ 1 - 4 ] : "
read opt
case "$opt" in
1) echo "Enter the source and destination for copying files" ;;
#read src dest ;;
#echo "$src" ;;
#echo "$dest" ;;
2) ;;
3) echo "\t the number of possible users on the system: `cat /etc/passwd |wc -l` \n\t the number of current user on the system : `who | wc -l`\n\t the number of processes running: `ps -e | wc -l`" ;;
*) exit ;;
esac
done
Langara College , Vancouver , Canada , Hengameh Hamavand , CPSC 1280
I tried with following modification and able to read user input and print them:-
Code:
#!/bin/sh
clear
echo "\t `date "+%d/%m/%Y"`"
echo "\t Hostname Machine: `hostname`"
echo "\t user: `whoami` "
echo "\t M A I N - M E N U"
echo "\t 1.Copey Directory Tree"
echo "\t 2.Delete Files or Directories"
echo "\t 3.Output Information"
while true ; do
echo -n "\t Please enter an option [ 1 - 4 ] : "
read opt
case "$opt" in
1) echo "Enter the source and destination for copying files"
read src
read dest
echo "$src"
echo "$dest"
;;
2) ;;
3) echo "\t the number of possible users on the system: `cat /etc/passwd |wc -l` \n\t the number of current user on the system : `who | wc -l`\n\t the number of processes running: `ps -e | wc -l`" ;;
*) exit ;;
esac
done
The “Delete files or directories” selection should prompt for a list of files or directories to be deleted. The script asks user for confirmation before deleting a file or a whole directory. The script must perform reasonable argument validation.
I tried to read the list of files and directories in a string but it is pretty hard to split the string based on space and put them in an array and then check them one by one and delete them. Also I was thinking to run a while loop to ask user to enter the name of file and then delete it and again repeat the job but it is not a nice way.
would you give me some clue?
Code:
#!/bin/sh
clear
echo "\t `date "+%d/%m/%Y"`"
echo "\t Hostname Machine: `hostname`"
echo "\t user: `whoami` "
echo "\t M A I N - M E N U"
echo "\t 1.Copey Directory Tree"
echo "\t 2.Delete Files or Directories"
echo "\t 3.Output Information"
while true ; do
echo -n "\t Please enter an option [ 1 - 4 ] : "
read opt
case "$opt" in
1) echo "Enter the source of the files and destination for copying "
read src dest
if [ -n "$src" -a -n "$dest" ]
then
if [ -d "$src" -o -f "$src" -a -d "$dest" ]
then
cp -r "$src" "$dest"
else
echo "Enter the valid file or directory addresses"
fi
else
echo "please enter valid address as a source and destination to copy the files "
fi ;;
2) echo "enter the name of files want to be deleted"
read files
for f in "$files"
do
echo "$f\n"
done
;;
3) echo "\t the number of possible users on the system: `cat /etc/passwd |wc -l`"
echo "\t the number of current user on the system : `who | wc -l`"
echo "\t the number of processes running: `ps -e | wc -l`"
;;
*) exit ;;
esac
done
---------- Post updated at 02:13 AM ---------- Previous update was at 12:50 AM ----------
Code:
2) echo "enter the name of files want to be deleted"
read a
for CHARACTER in $a ; do
if [ -f $CHARACTER -o -d $CHARACTER ] ; then
rm -ir $CHARACTER
else
echo "$CHARACTER is not a valid file or directory"
fi
done
;;
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