asked on

Conditional result route

Hello Folks,
I'm trying to create a bash script and I need to translate this to .SH format

pwd #example command
if [ $? -ne 0 ] 
then echo "bad input of the command try again"  #the command should re-do*
else  fi
echo "next command" #more commands continue with the rest of the bash

Open in new window

*I just don't know how to loop it, i know if I was in batch then i can set up routines but i'm not sure if those are possible to apply here

arnold

please clarify what you mean.
bash is a shell script.
the suffix of the file is of no consequence in linux/unix
the first line of a shell script
#!/bin/sh
will tell it what to use, though the local shell might be used to process a shell script

a loop can use
while (condition) ; do
#perform tasks
done #close while loop

you can of course define a marker :0 as a goto 0
sub

there are many resources on the net that you need only specify which shell (bash, sh, ksh, zsh, csh,tcsh,etc.)
the cover the different option.

i.e. what is the task/s you want performed, and the logic, order
then you can define functions/subs/...........
pass items to and get data back, etc.

ivan rosa

ASKER

Hi Arnold, let me start again, I have a script already running under

#!/bin/bash
adcli join win.example.com -U user1
yum update

So the 2nd line will prompt for a password, so what I want is, IF that line gives an error I want it to go back to line 2 until the correct password is input

ASKER CERTIFIED SOLUTION

arnold

membership

This solution is only available to members.

To access this solution, you must be a member of Experts Exchange.

Start Free Trial

ivan rosa

ASKER

This actually gave me a great idea example and modify it to my needs

Thanks Arnold!