nixCraft

shankar100 · #1 (**permalink**) 02-20-2007, 02:21 PM

Hello,

I am learning shell script by following online documentation of vivek (freeos.com). I need some help to fix the problem. please see the below script.

dialog --title "Input- Delete a file" --backtitle "Welcome to linux dialog utility" --inputbox "Enter the file name to delete" 8 60 2>/home/shankar/name
sel=$?
out=`cat /home/shankar/name`
case $sel in
0) rm $out; echo "file is deleted";;
1) echo "You pressed cancel";;
255) echo "You pressed ESC";;
esac
rm /home/shankar/name

The above script will delete the given file, what if there is no file exists ( if (! -f $out) ). The script should check for the file on the system , if finds delete that otherwise it leave a message "no such file exists". Please help me

nixcraft · #2 (**permalink**) 02-21-2007, 09:17 AM

Hello shankar,

Here is the script

Code:

#!/bin/bash
TMPFILE="/tmp/filename.txt"
dialog --title "Input - Delete a file" --backtitle "Welcome to Linux delete" --inputbox "Enter delete file name" 8 60 2>$TMPFILE
sel=$?
out=$(cat $TMPFILE)
if [ ! -f $out ]; then
  echo "Fie $out does not exists"
  exit 1
else
  case $sel in
   0) /bin/rm $out; echo "File $out has been deleted";;
   1) echo "You pressed cancel";;
   255) echo "You pressed ESC";;
  esac
fi
/bin/rm $TMPFILE

shankar100 · #3 (**permalink**) 02-21-2007, 11:32 AM

Quote:

Originally Posted by nixcraft

Hello shankar,

Here is the script

Code:

#!/bin/bash
TMPFILE="/tmp/filename.txt"
dialog --title "Input - Delete a file" --backtitle "Welcome to Linux delete" --inputbox "Enter delete file name" 8 60 2>$TMPFILE
sel=$?
out=$(cat $TMPFILE)
if [ ! -f $out ]; then
  echo "Fie $out does not exists"
  exit 1
else
  case $sel in
   0) /bin/rm $out; echo "File $out has been deleted";;
   1) echo "You pressed cancel";;
   255) echo "You pressed ESC";;
  esac
fi
/bin/rm $TMPFILE

Thank you, works fine

borsel · #4 (**permalink**) 03-02-2007, 06:08 AM

Quote:

Originally Posted by shankar100

Hello,

I am learning shell script by following online documentation of vivek (freeos.com). I need some help to fix the problem. please see the below script.

dialog --title "Input- Delete a file" --backtitle "Welcome to linux dialog utility" --inputbox "Enter the file name to delete" 8 60 2>/home/shankar/name
sel=$?
out=`cat /home/shankar/name`
case $sel in
0) rm $out; echo "file is deleted";;
1) echo "You pressed cancel";;
255) echo "You pressed ESC";;
esac
rm /home/shankar/name

The above script will delete the given file, what if there is no file exists ( if (! -f $out) ). The script should check for the file on the system , if finds delete that otherwise it leave a message "no such file exists". Please help me

Hi,

could you please tell me how you got the dialog utility .I am running ubuntu , not redhat.

thanks

nixcraft · #5 (**permalink**) 03-02-2007, 10:22 AM

It is also installed under Ubuntu by default. If not type the following command:

Code:

sudo apt-get install  dialog

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Shell script to delete a file with a dialog utility

Shell script to delete a file with a dialog utility

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