Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Comparing the characters of 2 variables Post 302557195 by Corona688 on Tuesday 20th of September 2011 02:49:31 PM
Old 09-20-2011
OK.

Since you have bash, you have string operations, so:

Code:
#!/bin/bash

STR="kitten"
GUESS="${STR//[a-z]/_}" # Replace all [a-z] with _

while [ "$GUESS" != "$STR" ]
do
        IN=""
        while [ "${#IN}" -ne 1 ] || [ ! -z "${IN/[a-z]}" ]
        do
                printf "${GUESS} Enter a character, then ENTER: "
                read IN
        done

        # Loop through every character in $STR.
        for((N=0; N<${#STR}; N++))
        do
                if [ "${STR:$N:1}" = "$IN" ]
                then
                        if [ "${GUESS:$N:1}" = "$IN" ]
                        then
                                echo "You already guessed that!"
                                break;
                        fi
                        # i.e. replacing the first 't' in kitten.
                        # ${GUESS:0:$N} gets 'ki'.
                        # ${GUESS:$((N+1))} gets 'ten'.
                        # We stick our guess, $IN, in the middle.
                        GUESS="${GUESS:0:$N}${IN}${GUESS:$((N+1))}"
                fi
        done
done

echo "You got it!  $GUESS"

This User Gave Thanks to Corona688 For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

comparing variables

I have searched and found a few threads that have dealt with this, but the examples I've tried haven't seemed to help. I am monitoring our database log for high checkpoints. I can parse out the checkpoint value which can be anywhere from zero into a 3 digit number. I set a variable to be the... (3 Replies)
Discussion started by: MizzGail
3 Replies

2. Shell Programming and Scripting

Comparing two variables

Script #!/bin/sh hardware=PC os=WindowsNET for i in `cat newservers` do x=`sudo /opt/openv/netbackup/bin/admincmd/bpplclients |grep $i |head -40 |grep $i|awk '{print $3;exit}'` if then echo "$i is already added" else echo "Need to add" fi done O/p in debug mode bash-2.05$... (3 Replies)
Discussion started by: rajip23
3 Replies

3. Shell Programming and Scripting

Grabbing variables and comparing

I have two computers with dynamic IP addresses and am using dyndns so that they are identifiable as the same computer even if their IPs change (we'll call them host1.dyndns.com and host2.dyndns.com). I also have a remote server which I would like to store my computers' IP addresses on. There is a... (9 Replies)
Discussion started by: kerpm
9 Replies

4. Shell Programming and Scripting

Comparing Variables in Perl

Hi. I have three arrays. @a=('AB','CD','EF'); @b=('AB,'DG',HK'); @c=('DD','TT','MM'); I want to compare the elements of the first two array and if they match then so some substition. I tried using the if statement using the scalar value of the array but its not giving me any output. ... (7 Replies)
Discussion started by: kamitsin
7 Replies

5. UNIX for Dummies Questions & Answers

comparing variables

im trying to compare ipaddresses. i loop through an array to see if the ip is already is in the array and if it is it should set a flag and then i wont add it to the array. but its just adding all the ipaddresses to the array if ] then ... (3 Replies)
Discussion started by: magnia
3 Replies

6. Shell Programming and Scripting

comparing multiple variables by 'if then'

Hi, I am a noob at shell scripting. basically I am trying to compare row counts from 8 tables in different databases. I have managed to get the row counts using awk from the spool files for both databases. now I have 16 variables with me for database 1 : $A $B $C $D $E $F $G... (3 Replies)
Discussion started by: smallville
3 Replies

7. Shell Programming and Scripting

Comparing content of two variables

I have very abstract need of "comparing two variables" and take subsequent actions. please refer to image below https://lh3.googleusercontent.com/-frNk5iA3q1c/TjI3lE0sWOI/AAAAAAAAAIE/fxzB1w07gas/script_block.JPG I have a part of script which reads a file and generates variables based on... (4 Replies)
Discussion started by: animesharma
4 Replies

8. Shell Programming and Scripting

awk comparing variables

Is there a way to compare variables in a 'awk'? I've been trying for a while and can't figure it out. I'm guessing its not possible :/ VAR=Bob awk '$3 == $VAR { print $1 }' file.txt Regards Jikuu (4 Replies)
Discussion started by: Jikuu
4 Replies

9. Shell Programming and Scripting

Comparing two variables

I have a script like this. Just couldn't get the comparison part work. Any thought? thanks, #!/usr/bin/ksh -x STEP=`echo $(basename $0 .ksh) | tr "" ""` log=/skip.log while read LINE do if then echo `date`: STEP $STEP skipped by user >> $log exit 0 fi done < $1 echo... (0 Replies)
Discussion started by: ghostmic
0 Replies

10. UNIX for Beginners Questions & Answers

Comparing 2 variables in UNIX

Hi, I have 2 variables as given below. How can i compare them and say its matching ? Appreciate your help VAR1=describe/read/write VAR2=read/write/describeThanks, Please use CODE tags as required by forum rules! (4 Replies)
Discussion started by: prince1987
4 Replies
RoPkg::Exceptions(3pm)					User Contributed Perl Documentation				    RoPkg::Exceptions(3pm)

NAME
RoPkg::Exceptions - exceptions used by RoPkg packages DESCRIPTION
RoPkg::Exceptions is a collection of predefined exceptions used by all modules from RoPkg namespace. SYNOPSIS
#!/usr/bin/perl use strict; use warnings; use RoPkg::Exceptions; sub main { eval { if ( $#ARGV == -1 ) { Param::Missing->throw('No parameter found'); } }; if ( my $e = Exception::Class->caught('Param::Missing') ) { print STDERR $e->message,$/,$e->trace,$/; } } main(); It is very possible that you don't find a good reason for using exceptions from this example. And you are right. This example is kind of silly. But, try to use exceptions in a real project. Then, you will apreciate their real value. DEPENDENCIES
RoPkg::Exceptions require perl 5.008 or later and the Exception::Class module. Exceptions List The following exceptions are defined in this class: *) General - general pourpose exception *) OutsideClass - raised when a method is called outside a class instance *) File - the base for all file related exceptions . This exception has the filename parameter, who can be used to specify the path to the file. filename parameter can be used by all derivated exceptions. The following exceptions are derivated from File: *) File::NotFound - the file was not found *) File::Open - error while opening file *) File::Create - could not create file *) Dir - the base for all directory related exceptions . This exception has the dirname parameter, who can be used to specify the path to the directory. dirname parameter can be used by all derivated exceptions. The following exceptions are derivated from Dir: *) Dir::NotFound - the directory was not found *) Dir::Open - error while opening directory *) Dir::Create - could not create directory *) Param - the base for all parameters related exceptions. This exception has the name parameter, who can be used to specify the parameter name. name can be used by all derivated exceptions. The following exceptions are derivated from Param: *) Param::Missing - the parameter was not found *) Param::Unknown - the parameter is unknown *) Param::Wrong - the parameter has the wrong value or is not defined *) DB - the base for all database related exceptions. This exception has the following parameters: dsn, user and pass . This exception (and the ones derivated from her) are mostly used in RoPkg::DB class. Of course, this doesn't means that you can't use them in your application ;) .The following exceptions are derivated from DB: *) DB::Connect - raised when the connection with the database could not be established *) DB::ConnExists - raised when a connection with the same name already exists. *) DB::ConnNotFound - the requested connection was not found *) DB::NoResults - the sql query returned no results Exceptions Tree ROOT General OutsideClass File File::NotFound File::Open File::Create Dir Dir::NotFound Dir::Open Dir::Create Param Param::Missing Param::Unknown Param::Wrong DB DB::Connect DB::ConnExists DB::ConnNotFound DB::NoResults SEE ALSO
RoPkg::Utils AUTHOR
Subredu Manuel <diablo@iasi.roedu.net> VERSION
The current version is 0.2.1 DIAGNOSTICS
The tests for this module are located in t directory. To run those tests, use the following command: make test SUBROUTINES
/METHODS This module does not have any public methods. INCOMPATIBILITIES
None known to me PERL CRITIC
This module is perl critic level 1 compliant with 1 exception. BUGS AND LIMITATIONS
No known bugs. If you find one (or many) please send me a detailed report. CONFIGURATION AND ENVIRONMENT
No configuration file or environment variables are used by this module. LICENSE AND COPYRIGHT
Copyright (C) 2005 Subredu Manuel. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. The LICENSE file contains the full text of the license. perl v5.8.8 2006-06-09 RoPkg::Exceptions(3pm)
All times are GMT -4. The time now is 09:19 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy