|
Home
Search Perl pages
Subjects
By activity
Professions, Sciences, Humanities, Business, ...
User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...
Text Strings
Conversions, tests, processing, manipulation,...
Math
Integer, Floating point, Matrix, Statistics, Boolean, ...
Processing
Algorithms, Memory, Process control, Debugging, ...
Stored Data
Data storage, Integrity, Encryption, Compression, ...
Communications
Networks, protocols, Interprocess, Remote, Client Server, ...
Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...
File System
Management, Filtering, File & Directory access, Viewers, ...
|
|
|
syswrite FILEHANDLE,SCALAR,LENGTH,OFFSET
syswrite FILEHANDLE,SCALAR,LENGTH
Attempts to write
LENGTH bytes of data from variable
SCALAR to the specified
FILEHANDLE, using the system call write(2). It bypasses stdio, so mixing this with reads (other than sysread()), print(), write(), seek(), or tell() may cause confusion. Returns the number of bytes actually written, or undef if there was an error. If the length is greater than the available data, only as much data as is available will be written.
An
OFFSET may be specified to write the data from some part of the string other than the beginning.
A negative
OFFSET specifies writing that many bytes counting backwards from the end of the string.
Source: Perl builtin functions
Copyright: Larry Wall, et al. |
Next: tell FILEHANDLE
Previous: system LIST
(Corrections, notes, and links courtesy of RocketAware.com)
![[Overview Topics]](/outbndsm.gif)
Up to: Stdio Stream file operations
Up to: File Access
Rapid-Links:
Search | About | Comments | Submit Path: RocketAware > Perl >
perlfunc/syswrite.htm
RocketAware.com is a service of Mib Software
Copyright 2000, Forrest J. Cavalier III. All Rights Reserved.
We welcome submissions and comments
|
