BOL: Perl One-Liner to print only non-uppercase letters

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Perl One-Liner to print only non-uppercase letters

Perl One-Liner to print only non-uppercase letters

By BioStar 1615 days ago

#Go through file and only print words that do not have any uppercase letters.
perl -ne 'print unless m/[A-Z]/' dna.fa > dnaOnlyLowercase.fa

#To lowercase everything 
perl -pne 'tr/[A-Z]/[a-z]/' dnaUpperCase.fa >dnawithoutuppercase.fa;