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Full Discussion: Checking for certain characters
Top Forums UNIX for Advanced & Expert Users Checking for certain characters Post 302216735 by SAMZ on Monday 21st of July 2008 04:59:26 AM
Old 07-21-2008
Thanks for all the above help, but let me clarify the need of what is required to see if anyone can assist further.
Currently as stated i have teh following file called TEST1.CSV

ID ,, VALUE
A001 ,, 100
B002 ,, 200
A004 ,, 300
B006 ,, 100
A997 ,, 200
B776 ,, 400



This file needs to be processed but only if all the ID's are correct (that means only if the IDs begin with an A - B charcter.
If the ID begins with any character other A or B the process needs to exit out the script with error message.

What i would like is the following:

IF [begining of row is not A or B] THEN
print error message
exit 1
END IF

No else required as if the only A and B the IF statement will end succesfully leading the process scripting afterwards.
So any thoughts, not really as complex as previously thought???
 

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LEARN ABOUT HPUX

pdp11

machid(1)						      General Commands Manual							 machid(1)

NAME

       machid: hp9000s200, hp9000s300, hp9000s400, hp9000s500, hp9000s700, hp9000s800, hp-mc680x0, hp-pa, pdp11, u370, u3b, u3b10, u3b2, u3b5, vax
       - provide truth value about processor type

SYNOPSIS

DESCRIPTION

       The following commands return a true value (exit code 0) if the a processor type matches the command name.  Otherwise a false  value  (exit
       code  nonzero)  is returned.  These commands are commonly used within makefiles and shell procedures to improve portability of applications
       (see make(1)).

				       +-----------+-------------------------++--------+--------------------------+
				       |Command    | True for		     ||Command | True for		  |
				       +-----------+-------------------------++--------+--------------------------+
				       |hp9000s200 | Series 200 	     ||pdp11   | PDP-11/45 or PDP-11/70   |
				       |hp9000s300 | Series 300 	     ||u3b     | 3B20 computer		  |
				       |hp9000s400 | Series 400 	     ||u3b2    | 3B2 computer		  |
				       |hp9000s500 | Series 500 	     ||u3b5    | 3B5 computer		  |
				       |hp9000s700 | Series 700 	     ||u3b10   | 3B10 computer		  |
				       |hp9000s800 | Series 800 or 700	     ||u370    | IBM System/370 computer  |
				       |hp-mc680x0 | Series 200, 300, or 400 ||vax     | VAX-11/750 or VAX-11/780 |
				       |hp-pa	   | Series 700 or 800	     ||        |			  |
				       +-----------+-------------------------++--------+--------------------------+
EXAMPLES

       Given a shell script that must behave differently when run on an HP 9000 Series 700 or 800 system, select the correct code  segment  to	be
       executed:

WARNINGS

       always  returns	true on both Series 800 and Series 700 systems.  Therefore, when using this command in scripts to determine hardware type,
       always use both and in the appropriate sequence to ensure correct results (see

       machid(1) will no longer provide support for future machines beyond the Series 800 and Series 700 systems.  Decisions should  be  based	on
       the hardware and software configuration information returned by getconf(1).

SEE ALSO

       getconf(1), make(1), sh(1), test(1), true(1).

																	 machid(1)
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