In Python, strings can be joined by a plus sign “+”.
print "this" + " that"
String can be repeated using “*”.
print "this" * 2
Substring extraction is done by appending a bracket “[]” with begin and ending index.
a="this and that" print a[3:6]
The index can be negative, which counts from the end.
a="this and that" print a[3:-2]
Length of the string is “len()”.
a="this and that" print len(a)
In Perl, string join is done with a dot.
$astr= "this" . "that";
String repeatition is done with the “x” operator:
print 'abc' x 2;
String extraction is done with “substr()”. The form is: “substr($myString, offset index, number of characters to extract)”.
print substr('abcdefg',2,3); # prints cde
Length of string is “length()”.
print length('abc');