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Help with Passing argument and testing

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# 1  
Old 02-28-2010
Power Help with Passing argument and testing
Hi all

First of all thanks for everyone to read by doubt.Am beginner in shell scripting
Following are my doubts

i have to pass an argument to shellscript how can i do that

second i have to test the argument and shows error when nothing is passes

third i have to match exact argument and pass to next steps.Below are the example of my script

checkpair.sh i have to pass argument either 1 or 11

but if statement should only match for 1 or 11 not anyother number

I need this helpSmilie
# 2  
Old 02-28-2010
Quote:
Originally Posted by zeebala1981
...
i have to pass an argument to shellscript how can i do that
second i have to test the argument and shows error when nothing is passes
third i have to match exact argument and pass to next steps.Below are the example of my script
checkpair.sh i have to pass argument either 1 or 11
but if statement should only match for 1 or 11 not anyother number
...
Something like this ?

Code:
$ 
$ cat -n myscript.sh
     1  #!/bin/bash
     2  if [ $# != 1 ]
     3  then
     4    echo "You must pass exactly one argument to this script!"
     5    exit 1
     6  fi
     7  if [[ $1 != 1 && $1 != 11 ]]
     8  then
     9    echo "The input parameter must be 1 or 11!"
    10    exit 2
    11  fi
    12  echo "You have passed 1 or 11 to this script!"
    13
$ 
$ ./myscript.sh
You must pass exactly one argument to this script!
$ 
$ ./myscript.sh 10 20 30
You must pass exactly one argument to this script!
$ 
$ ./myscript.sh 99
The input parameter must be 1 or 11!
$ 
$ ./myscript.sh 1
You have passed 1 or 11 to this script!
$ 
$ ./myscript.sh 11
You have passed 1 or 11 to this script!
$ 
$

tyler_durden
# 3  
Old 02-28-2010
MySQL
Quote:
Originally Posted by durden_tyler
Something like this ?

Code:
$ 
$ cat -n myscript.sh
     1  #!/bin/bash
     2  if [ $# != 1 ]
     3  then
     4    echo "You must pass exactly one argument to this script!"
     5    exit 1
     6  fi
     7  if [[ $1 != 1 && $1 != 11 ]]
     8  then
     9    echo "The input parameter must be 1 or 11!"
    10    exit 2
    11  fi
    12  echo "You have passed 1 or 11 to this script!"
    13
$ 
$ ./myscript.sh
You must pass exactly one argument to this script!
$ 
$ ./myscript.sh 10 20 30
You must pass exactly one argument to this script!
$ 
$ ./myscript.sh 99
The input parameter must be 1 or 11!
$ 
$ ./myscript.sh 1
You have passed 1 or 11 to this script!
$ 
$ ./myscript.sh 11
You have passed 1 or 11 to this script!
$ 
$

tyler_durden

tyler

Thanks for the timely help its really working.Could you explain the following line alone please

if [[ $1 != 1 && $1 != 11 ]]
# 4  
Old 03-01-2010
Quote:
Originally Posted by zeebala1981
...
Could you explain the following line alone please

if [[ $1 != 1 && $1 != 11 ]]
Nope I won't, sorry. I can, but I won't.
Check the man page of your shell; it's all there. Nothing is made up.
Since you are a beginner, it's essential that you get into the habit of looking up the man page or info page as frequently as needed.

tyler_durden
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