Lowercase to Uppercase in shell script and perl
September10
Shell Script
1 2 3 4 5 6 7 8 9 10 11 12 13 | $ echo "abcd" | tr '[:lower:]' '[:upper:]' ABCD $ echo "Test Message" > ltou.txt $ cat ltou.txt Test Message $ tr '[:lower:]' '[:upper:]' < ltou.txt TEST MESSAGE $ tr '[:upper:]' '[:lower:]' < ltou.txt test message |
Using Perl
1 2 3 4 5 6 7 8 | $ echo "abcd" | perl -lane 'print uc($_);' ABCD $ perl -lane 'print uc($_);' ltou.txt TEST MESSAGE $ perl -lane 'print lc($_);' ltou.txt test message |
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