How do you debug a Perl scripting ( at the compile time
error or run
time error) in Unix environment ?

Answers were Sorted based on User's Feedback



How do you debug a Perl scripting ( at the compile time error or run time error) in Unix environm..

Answer / kuldip singh behal

we can also use -c and -d switches to debug our perl scripts
ex:
perl -c sample.pl (for compilation errors)
perl -d sample.pl (for debugging the code line by line)

Is This Answer Correct ?    8 Yes 1 No

How do you debug a Perl scripting ( at the compile time error or run time error) in Unix environm..

Answer / hemalata

For debugging perl scripting u can use
1. diagnostic modules - which can help us isolate and
understand problems with our code.

EX- use warning, use strict, use diagnostics

2.perl command line switches - u can create test programm
using the perl command line.

Ex-i) #!user/bin/perl -w
or on the command line like this

>perl -w program.plx

ii) -e = it tells the perl not to load and run a program
file but to run the text following -e as a program.

> perl -e "print \"hello World \n";"

iii)-c = stops perl from running your program instead ,al it
does is check that code can be complied as valid perl.
its a good way to quickly check that a program has no
glaring syntax errors.
> perl -ce 'print "hello,world\n";'
and so on it will available Google u can search ........
3. debugging techniques and perl de-debugger - how to remove
the problems that we've found.

Using debugger
> perl -d filename.plx

Is This Answer Correct ?    7 Yes 0 No

How do you debug a Perl scripting ( at the compile time error or run time error) in Unix environm..

Answer / manohar

#! /usr/bin/perl -d

Is This Answer Correct ?    5 Yes 0 No

How do you debug a Perl scripting ( at the compile time error or run time error) in Unix environm..

Answer / sirisha

by using strict and warnings, or by putting some print
statements

Is This Answer Correct ?    3 Yes 3 No

Post New Answer

More CGI Perl Interview Questions

Packing and Unpacking. Hi, I want to get output as 0x23400000345.... in the below example How to get? i tried out, but unable to get the answer $r=0x234; $t=0x345; $y=pack('L L',$t,$r); $x1=unpack('L!',pack('P',$y)); printf("\nThe value is $x1"); I didn't get constant output

1 Answers  


How do I pass a command line argument in perl?

0 Answers  


How to copy a file in perl?

0 Answers  


Explain about the applications of perl?

0 Answers  


How are parameters passed to subroutines in perl?

0 Answers  


What is eval function in perl?

0 Answers  


what are steps to do to lock the sony ericsson mobile with password?

0 Answers  


How do I sort a hash by the hash value?

0 Answers  


How many loop control keywords are there in perl?

0 Answers  


Explain perl. When do you use perl for programming? What are the advantages of programming in perl?

0 Answers  


What are the steps involved in configuring a server using cgi programming?

0 Answers  


what r the different type of function in perl ???

1 Answers   ABC, Symphony,


Categories