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• • Archana Malhotra@archana

  

  print "$^O\n"; To print the OS name in perl #Tipsoftheday #Perl #RegularExpression

  3941 days ago

• • Jitendra Narayan@admin

  

  Do you want to compile your Perl program without running it, try $ perl -c <program> #Tipsoftheday #Perl

  3913 days ago

• • Jitendra Narayan@admin

  

  Write something at the bottom of the file without opening it. perl -p -i -e 'eof && s/$/\nWord/;' <filename> #Tipsoftheday #Perloneliner

  3912 days ago

• • Jitendra Narayan@admin

  

  To check: Does an array has all equal values. if (keys %{{ map {$_, 1} @test }} == 1) { # all equal } #Tipsoftheday #Perl

  3907 days ago

• • Jitendra Narayan@admin

  

  To get all the module dependencies for yourScript.pl program. $ scandeps.pl yourScript.pl #Perl #Tipsoftheday

  3906 days ago

• • Jitendra Narayan@admin

  

  Generate N base genome: perl -e '@b=qw/A T G C/;print ">Genome\n";while($l<N){print @b[int(rand(4))];$l++;}' #Tipsoftheday #Perl

  3894 days ago

• • Jitendra Narayan@admin

  

  To round a floating-point value to a certain number of decimal places: $rounded = sprintf("%.2f", $unrounded); #Tipsoftheday #Perl

  3902 days ago

• • Poonam Mahapatra@poonam

  

  Number all lines in a file; perl -pe '$_ = "$. $_"': #Tipsoftheday #Perl

  3893 days ago

• • Jitendra Narayan@admin

  

  To count the number of matches in a string !!! $str = "one.two.three.four"; $n =()= $str =~ /\./gi; print $n; #Tipsoftheday #Perl

  3871 days ago

• • Jitendra Narayan@admin

  

  Convert space separated data to tab separated: perl -p -i -e 's/\s+/\t/g' file.txt #Perl #Tipsoftheday #Perlonliner

  3854 days ago

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