Shell Programming and Scripting

I would have thought this would be obvious by now, but:

Code:

$5=rot($5)

replaces the 5th field with every alphanumeric character (starting at the beginning of the field through the end of the field) rotated.

Code:

$5=rot($5,1,4)

replaces the 5th field with up to 4 alphanumeric characters starting in position 1 rotated.

Code:

$5=rot($5,3)

replaces the 5th field with every alphanumeric character starting in position 3 (to the end of the field) rotated (as in example 3). And,

Code:

$5=rot($5,3,2)

replaces the 5th field with up to 2 alphanumeric characters starting in position 3 rotated (as in example 4).

I tried it

Example3:

Code:

$5=rot($5,3)

Code:

Input:
AILLIAM
Output:
OORZN

Starting from 3 , it converts everything but first two fields got removed


Example4:

Code:

$5=rot($5,2,3)

Code:

Input:
AILLIAM
Output:
ROLIAM

first letter is missing and then it converts only 2 letter (2 and 3)

In Chubler_XL's function rot(), change the line:

Code:

   for(i=start;i<=length(string);i++) {

to:

Code:

   for(i=length(string);i;i--) {

i changed it

$5=rot($5,2,3)

Input :

03079

output :

97960

what i'm expecting

06929

I have been fighting a losing battle with the flu. I didn't realize it had affected my ability to read and write code. Please accept my humble apologies.

The arguments to Chubler_XL's rot() function are:

Code:

rot(string_to_process, starting_position, ending_position)

where starting_position and ending_position are offsets in string (with offset 1 being the 1st character in string). If ending_position is not supplied, it defaults to the offset of the last character in string. If neither starting_position nor ending_position are supplied, rot() acts on every character in string.

The call to rot() for your example 3 is still:

Code:

$5-rot($5,3)

but the call to rot() for your example 4 should be:

Code:

$5=rot($5,2,4)

And, change my earlier (mistaken) fix to Chubler_XL's code to be:

Code:

   for(i=1;i<=length(string);i++) {

Sorry.

I'm going back to bed.

thanks a lot don cragun.. hope u recovered from flu