Shell Scripting (2)

Raskolnikov

The rm command can be dangerous - you use it to delete files without being prompted. You also do not get any feedback. You are required to write a shell script called del which has the following specification:

Name: del - delete files interactively.
Syntax: del <filename>
Description: This is the outline for del:
.Select sh
.Get the filename from the command line ($1)
.If there is no file with that name print the error message "File does not exist".
.Otherwise:
ask if the user wants to delete the file.
Read the user's choice (y/n)
If the choice is yes (y) remove the file and print the message "The file has been deleted".
Otherwise, print the message "The file has not been deleted".

I can do the first of the 2 instructions but get the rest out! Anyone help me?!

Typedef

The rm command can be dangerous - you use it to delete files without being prompted. You also do not get any feedback.

in ~/.bashrc

have this

alias rm='rm -i'

Problem solved client happy, wierdos stored in our custom made storage facility.

man rm
rtfm

Meh

If there is no file with that name print the error message "File does not exist".

http://www.cyberciti.biz/nixcraft/linux/docs/uniqlinuxfeatures/lsst/ch03sec02.html

test -f <filename>

will test if a file exists. The link contains some examples of usage.

Read the user's choice (y/n)

http://www.cyberciti.biz/nixcraft/linux/docs/uniqlinuxfeatures/lsst/ch02sec10.html tells you how to read keyboard input into a variable. You can then compare this variable to "y" or "n"

Raskolnikov

Eeep, i hate shell programming.

logic1

Don't post your homework here.

.logic.

Raskolnikov

Originally posted by logic1
Don't post your homework here.

.logic.

I don't see what the big deal is, i wasn't asking for a complete solution or someone to do my 'homeowork', just some help and i got it from Meh. Anyway i don't see why my question should be any different from someone who is learning this of there own accord.

If you don't want anyone to get help from this forum then just delete any posts from people looking for help.

logic1

Homework questions are banned. They always have been and always will be. Do the work yourself.

Maybe you'll even learn something.

.logic.