The read Function reads a number of bytes into a variable from a filehandle. : file read « File « Perl






  1. Perl
  2. File
  3. file read

The read Function reads a number of bytes into a variable from a filehandle.

      

number_of_bytes = read(FILEHANDLE,buffer,how_many_bytes);

# Reading input in a requested number of bytes
print "10 bytes or less.\n";
print "If you type less than 10 characters, press Ctrl-d on a line by itself.\n";
$number=read(STDIN, $favorite, 10);
print "typed: $favorite\n";
print "bytes read was $number.\n";








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7.Read the first line of a local file
8.Read till the end of the file
9.Reading More than One Line
10.Reading a directory all at once with an array: Use an array with the readdir command, instead of a scalar variable
11.Reading from a Pipe
12.Reading from a file
13.Reading from the Filehandle
14.Reading one line from the file handle STDIN.
15.Reading the contents of a directory: change to that directory and then use the glob command
16.Reads an entire input file into an array.
17.Reads lines from a file and prints them.
18.Using read function in while loop
19.Using read function to read a file
20.Contents of the entire file are printed
21.Numbering Lines
22.To read a number of bytes from a file: $bytes_read = read(filehandle, $var, $length, $offset);
23.To read from a file: