This function returns an uppercased version of EXPR, or $_ if not specified. Check ucfirst() function which will return only first character in uppercase.
Following is the simple syntax for this function −
uc EXPR uc
This function returns String in uppercase.
Following is the example code showing its basic usage −
#!/usr/bin/perl -w $string = 'the cat sat on the mat.'; $u_string = uc($string); print "First String |$string|\n"; print "Second String |$u_string|\n";
When above code is executed, it produces the following result −
First String |the cat sat on the mat.| Second String |THE CAT SAT ON THE MAT.|