Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Replacing variable value in perl script

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Replacing variable value in perl script
# 1  
Old 03-25-2010
Question Replacing variable value in perl script
hi I have this line in my perl script

Code:
 
if (($cookie =~ /^cookie(.*)\/(.*)/) && ($ !~ /^cookie(10)\/(.*)|/)) {
                        $cookienumber = "$1.$2";
                        }

now if the result is cookie1/0,

my $cookienumber would be 1.0

but if the result is cookie1/0/0

my $cookienumber would be 1/0.0

how can I replace the variable for result 1/0.0 to 1.0.0?

How can I change $1 value from 1/0 to 1.0?

Please help thanks

---------- Post updated at 05:55 PM ---------- Previous update was at 05:30 PM ----------
Quote:
Originally Posted by tententen
hi I have this line in my perl script

Code:
 
if (($cookie =~ /^cookie(.*)\/(.*)/) && ($ !~ /^cookie(10)\/(.*)|/)) {
                        $cookienumber = "$1.$2";
                        }

now if the result is cookie1/0,

my $cookienumber would be 1.0

but if the result is cookie1/0/0

my $cookienumber would be 1/0.0

how can I replace the variable for result 1/0.0 to 1.0.0?

How can I change $1 value from 1/0 to 1.0?

Please help thanks
# 2  
Old 03-25-2010
Not sure I fully understand, but are you looking for something like this ?

Code:
$
$ cat -n cookies
     1  cookie1/0
     2  cookie1/0/0
     3  cookie1/0/0/0
     4  cookie1/0/0/0/0
     5  notacookie1/0/0
$
$ perl -lne '/^cookie/ && s!/!.!g; print' cookies
cookie1.0
cookie1.0.0
cookie1.0.0.0
cookie1.0.0.0.0
notacookie1/0/0
$
$

tyler_durden
# 3  
Old 03-25-2010
Question
change of plan :P

I need help with the regular expressions instead as I have tweaked my script

if $cookie =~ /^cookie(.)\/(.)\/(.)/

$cookietype="$1.$2.$3"

so if my $cookie is cookie1/0/0

my $cookietype will be 1.0.0

Problem is, if my $cookie is cookie1/0,

it doesnt match any of the pattern so it'll set the value to 0 by default
(defined in my final else statement).

I added elsif statement as below

elsif $cookie =~ /^cookie(.)\/(.)/
$cookietype="$1.$2"

and the value became 0, as if it doesnt match the pattern Smilie

please help.
# 4  
Old 03-25-2010
Code:
$
$
$ cat -n cookies
     1  cookie1/0
     2  cookie1/0/0
     3  cookie1/0/0/0
     4  cookie1/0/0/0/0
     5  notacookie1/0/0
$
$
$ perl -lne 'chomp($cookie=$_);
>            if ($cookie =~ /^cookie(.)\/(.)\/(.)$/) {$cookietype = "$1.$2.$3"}
>            elsif ($cookie =~ /^cookie(.)\/(.)$/) {$cookietype = "$1.$2"}
>            else {$cookietype = "0"}
>            print $cookietype' cookies
1.0
1.0.0
0
0
0
$
$

tyler_durden
# 5  
Old 03-25-2010
it worked!, thank you so much! Smilie
# 6  
Old 03-25-2010
Glad to know that!

tyler_durden
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Perl one liner in bash script not replacing hours and minutes [HH:MM]

Hi I want to replace time stamp in the following line PROCNAME.Merge.exchMon.CODE.T_QSTART 08:45 read assuming the new time stamp is 09:45 ; the line is getting replaced as below :45 read I'm trying to use the perl one liner in bash script perl -pi... (4 Replies)
Discussion started by: charlie87
4 Replies

2. Shell Programming and Scripting

Passing variable from bash to perl script

Hi All, I need to pass a variable from bash script to perl script and in the perl script i am using those variables in the sql query but its giving error : Use of uninitialized value $ENV{"COUNTRYCD"} in concatenation (.) or string at /GIS_ROOT/custom/tables/DBread_vendor.pl line 50. Can ... (6 Replies)
Discussion started by: NileshJ
6 Replies

3. Shell Programming and Scripting

Using variable from shell script in perl file

Hey, So I have a shell script that outputs some variables, call them $a and $b. I know in shell scripting if I wanted to use the variables in another shell script I'd do sh code.sh "$a" "$b" How can I do something similar with perl? (2 Replies)
Discussion started by: viored
2 Replies

4. Shell Programming and Scripting

Replacing strings in perl script

HI all, These are examples of the original value from a variable $abc can be FastEthernet1/0 GigabitEthernet3/1 Serial1/0 If $abc is FastEthernet*/* (where * can be any number), replace $abc value to fa*/* (same number as the original value). GigabitEthernet becomes ga*/* and Serial... (2 Replies)
Discussion started by: tententen
2 Replies

5. Shell Programming and Scripting

Perl Variable Check Script

I am working on a perl script that is used to update a list of hosts to a certain file but I am having an issue when I try to perform a check to make sure the user enters valid information. The following is what I have currently written for the script: IPINPUT: print "Enter IP Address: ";... (2 Replies)
Discussion started by: Takau
2 Replies

6. Shell Programming and Scripting

Increment a date variable in perl script

Hi, I have a perl script which prints epoch value of date in milliseconds as the output. My reuirement is that once the output is printed,the day variable shld increment by 1 and when i execute the script for the second time the output shld be for the new day value. My script looks as... (11 Replies)
Discussion started by: jyothi_wipro
11 Replies

7. Shell Programming and Scripting

How to return a value of a variable from shell script to perl script

HI , Is there any way to return a value of variable from shell to perl script. Code: === Perl file my $diff1=system("sh diff.sh"); my $diff2=system("sh diff1.sh"); I need exit status of below commands i.e 0 and 1 respectively. Since in both the cases diff is working so system... (3 Replies)
Discussion started by: srkelect
3 Replies

8. Shell Programming and Scripting

visibility of a variable in Perl script.

I am writing a script to cross check the dbscript. For that I am searching the SQL manipulators in the dbscript as shown below. But my problem is the variable $pattern is coming as null when comes out of the foreach loop. File content: ========= vi /home2/niroj_p/dbscript.sql -------... (1 Reply)
Discussion started by: Niroj
1 Replies

9. Shell Programming and Scripting

replacing a number with random variable inside shell script

Hi All. I need help for the below logic. I ve a file like following input file: NopTX(5) // should be remain same as input ----Nop(@100); //1 Nop(90); //2 --Nop(80); //3 @Nop(70); //4 --@Nop(60); //5 @Nop@(@50); //6 --Nop@( 40); ... (3 Replies)
Discussion started by: user_prady
3 Replies

10. Shell Programming and Scripting

Perl script variable passed to Oracle query

Hi All, I pass a Perl script variable, whch is passed to a query to be prepared. But the problem is I have special character like '&' in this variable which are handled in a special way by the Oracle query parser. How do I get over this? my $cust_name='A&B'; my $sql="Select cust_short_name... (1 Reply)
Discussion started by: rahulrathod
1 Replies
Login or Register to Ask a Question