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Perl readline Function
Description
This function reads a line from the filehandle referred to by EXPR, returning the result. If you want to use a FILEHANDLE directly, it must be passed as a typeglob.
Simply readline function is equvivalent to <>.
Syntax
Following is the simple syntax for this function −
readline EXPR
Return Value
This function returns only one line in a scalar context and in a list context, a list of line up to end-of-file is returned
Example
Following is the example code showing its basic usage −
#!/usr/bin/perl -w my($buffer) = ""; open(FILE, "/etc/services") or die("Error reading file, stopped"); $buffer = <FILE>; print("$buffer"); $buffer = readline( *FILE ); print("$buffer"); close(FILE); When above code is executed, it produces the following result −
# /etc/services: # $Id: services,v 1.33 2003/03/14 16:41:47 notting Exp $
perl_function_references.htm
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