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For 2023 (and 2024 ...) - we are now fully retired from IT training.
We have made many, many friends over 25 years of teaching about Python, Tcl, Perl, PHP, Lua, Java, C and C++ - and MySQL, Linux and Solaris/SunOS too. Our training notes are now very much out of date, but due to upward compatability most of our examples remain operational and even relevant ad you are welcome to make us if them "as seen" and at your own risk.

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PERL  program

Posted by apillai (apillai), 27 November 2007
Hi
This is in response to your previous mail .
This the code i have written ..but is seems to print the entire file and not the  lines with the user input data only.
print "\nenter the QAcategory from the categories below:\n";
print "QAcategory:\"script_basic\",\"tool_basic\",\"advanced:adv_studio,adv_msv,adv_mmmc\"\.\n";
open (INPUT, "runlist.txt") || die "cannot open runlist.txt for reading\n";
open (OUT ,">rundef.txt") || die "cannot open run_def.txt for writing\n";
 $qa_cat = <STDIN>;
while (<INPUT>){
 
  if ($_ =~ /^.*script_basic.*/) {
   $line = $_;
   print OUT "$line";
  }
  elsif ($_ =~  /^.*tool_basic.*/)
  {
   $line = $_;
   print OUT "$line";
 }

}

Could you plese go through and tell me where I have gone wrong.

Thanks

Posted by admin (Graham Ellis), 28 November 2007
You are not making any use of the user entered information. You are printing all lines containing script_basic or tool_basic to the file ... which looks (your previous thread) rather like every line in the file!

There's a lot of excess manipulation of $_ which makes your code much more complex than needed, and regular expressions which have needless .* elements in them - I guess that you might have taught yourself just enough Perl to start to write the code, but perhaps not enough to complete the job with a working program yet?   We can help you via http://www.wellho.net/course/ppfull.html which can get you foing very quickly and efficiently!



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