Starting my first shell script.

visle · 03-28-2010, 07:05 PM

I've been recently interested in shell scripts.. and my friend wants me to create a script that allows you to ping..

Ive been trying to find info about how i could set this up but found nothing..

also all i really need to create a shell script is the note pad and set it as a .bat file?? or do i need a program to make a shell?

damgar · 03-28-2010, 07:12 PM

A script is just a text file. It doesn't need any particular suffix. Notepad will do just fine.

http://tldp.org/LDP/abs/html/index.html

pixellany · 03-28-2010, 07:25 PM

It's not going to be a .bat file--that is for DOS/Windows systems. In Unix and Linux, you do not need to be concerned about extensions.

The first rule in learning scripting is to learn the individual commands. For example, do you know how to ping a web address?

PS: At tldp, I would not start with ABS. First, I would get the "Bash Guide for Beginners"

visle · 03-28-2010, 07:28 PM

well im running these programs on windows OS system.. which is why i assume they need to run as .bat files..

I understand how to ping with command prompt. ping 192.168.*.*

pixellany · 03-28-2010, 07:39 PM

Then all you need to do is put the command in a text file, set the permissions, and execute it.

What else did you want your script to do????

visle · 03-28-2010, 10:44 PM

im trying to figure out how to make a basic pinging shell. I found an exmaple on the fourms... x.x.x.x= a specific ip.. How can i set it so the user can input the address and output the result..

@ping x.x.x.x > nul
@IF ERRORLEVEL 1 GOTO dead
@IF ERRORLEVEL 0 GOTO alive

:dead
@net send x.x.x.x Dead
@ECHO Dead
@GOTO end

:alive
@net send x.x.x.x Alive
@ECHO Alive
@GOTO end

:end
@ECHO Goodbye

pixellany · 03-28-2010, 10:56 PM

Please do not start a new thread on the same basic topic----I have merged the relevant threads.

At LQ, you are in the right sub-forum, but I'm not sure there are many here that are up on the Windows scripting language---I trust you have some sort of reference manual.

What you need is the equivalent of the BASH "read" command.

catkin · 03-28-2010, 11:26 PM

Quote:

Originally Posted by visle

im trying to figure out how to make a basic pinging shell. I found an exmaple on the fourms... x.x.x.x= a specific ip.. How can i set it so the user can input the address and output the result..

@ping x.x.x.x > nul
@IF ERRORLEVEL 1 GOTO dead
@IF ERRORLEVEL 0 GOTO alive

:dead
@net send x.x.x.x Dead
@ECHO Dead
@GOTO end

:alive
@net send x.x.x.x Alive
@ECHO Alive
@GOTO end

:end
@ECHO Goodbye

That is not what is commonly known as a shell script. It is what is commonly known as a .bat or batch file. There are much better places than Linux Questions for getting help with .bat files. There's a lot of information here and some forums here.

MTK358 · 03-29-2010, 06:41 AM

Forget about batch files, they are not even closely similar to bash scripts (except that they use programs instead of commands).

Also, forgat about file extensions. They simply don't exist in Linux (at least at the OS level). They are sometimes used as a convenience for users to easily be able to tell the file type, but unlike Windows, they don't mean anything to the OS.

LinuxCommand (in my sig) is a great tutorial for both the Linux command line and shell scripting.