OT: shell scripting problem

[Alexander Dalloz]

Am Mi, den 18.05.2005 schrieb linux.whiz at gmail.com um 0:55:

> My brain is fried.  I know there is a simple answer to this but I'm
> drawing a blank.  I want to run a script against the contents of a
> text file.  The text file is just my users' first name, middle initial
> and last name like this:
> 
> John A Smith
> Mary P James
> Sally R Jones
> Fred Q Davis
> 
> What I want to do is for each user in this file, run a script.  I
> tried to do this:
> 
> for i in `cat textfile`; do
>   myscript.sh $i
> done
> 
> I expect this to run like this:
> 
> myscript.sh John A Smith
> myscript.sh Mary P James
> myscript.sh Sally R Jones
> myscript.sh Fred Q Davis

> LW

Does your "myscript.sh" expect 3 arguments or one single consisting of
the full person's name?

a) script runs i.e. "John A Smith" as 1 argument:
$ cat names.lst | while read line; do ./script.sh "${line}"; done
-->
1 argument:
john a smith
1 argument:
mary p james
1 argument:
sally r jones
1 argument:
fred q davis


b) script runs i.e. "John A Smith" as 3 arguments:
$ cat names.lst | while read line; do ./script.sh ${line}; done
-->
3 arguments:
JOHN A SMITH
3 arguments:
MARY P JAMES
3 arguments:
SALLY R JONES
3 arguments:
FRED Q DAVIS

The "script.sh" in my example is:

$ cat script.sh
#!/bin/bash
 
if [ "$2" != "" ]; then
  echo "3 arguments: "
  echo -n $1 | tr [:lower:] [:upper:]
  echo -n " "
  echo -n $2 | tr [:lower:] [:upper:]
  echo -n " "
  echo    $3 | tr [:lower:] [:upper:]
else
  echo "1 argument: "
  echo $1 | tr [:upper:] [:lower:]
fi

And names.lst contains:

$ cat names.lst
John A Smith
Mary P James
Sally R Jones
Fred Q Davis

Alexander Dalloz


-- 
Alexander Dalloz | Enger, Germany | GPG http://pgp.mit.edu 0xB366A773
legal statement: http://www.uni-x.org/legal.html
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