NAME
open -
SYNOPSIS
open fileName
open fileName access
open fileName access permissions
_________________________________________________________________
DESCRIPTION
readputsclose fileName |: fileName filename |
access () access :
r access
r+
w (truncate)
w+ (truncate)
a
a+
access POSIX RDONLYWRONLY RDWR
RDONLY
WRONLY
RDWR
APPEND
CREAT ()
EXCL CREAT
NOCTTY
NONBLOCK I/O
( fconfigure ) open O_NONBLOCK
TRUNC
permissions ()Permissions 0666
Note that if you are going to be reading or writing binary data from |
the channel created by this command, you should use the fconfigure |
command to change the -translation option of the channel to binary |
before transferring any binary data. This is in contrast to the ``b'' |
character passed as part of the equivalent of the access parameter to |
some versions of the C library fopen() function.
COMMAND PIPELINES
fileName is | fileName exec access open ( access
w)(override)()(access r)(override)()
Tcl ==> Pipeline ==> command
+--------+ +--------+ +--------+ +--------+
| stdin |<------+ stdin | +-->| pipein | +--+ stdin |
+--------+ +--------+ | +--------+ | +--------+
| stdout |<--+---+ stdout | | | pipeout|<--+ | stdout +--+
+--------+ | +--------+ | +--------+ +--------+ |
| | stderr | | | stderr | |
| +--------+ | +--------+ |
| | channel+--+ |
| +--------+ |
+-----------------------------------------------+
+-----------------------------------------------+
| |
+--------+ | +--------+ +--------+ +--------+ |
| stdin |<--+---+ stdin | | pipein |<--+ | stdin +--+
+--------+ +--------+ +--------+ | +--------+
| stdout |<------+ stdout | +-->| pipeout| +--+ stdout |
+--------+ +--------+ | +--------+ +--------+
| stderr | | | stderr |
+--------+ | +--------+
| channel+--+
+--------+
Tcl <== Pipeline <== command
SERIAL COMMUNICATIONS
fileName fileName |
CONFIGURATION OPTIONS |
fconfigure : |
-mode baud,parity,data,stop |
: (baud)(parity)baud Parity : |
noemsnoneoddevenmarkspaceData 5 8 stop 1 2 |
-pollinterval msec |
Windows (poll) Tcl () 10 msec () |
-lasterror |
Windows ()read puts Tcl I/O fconfigure -lasterror |
(FRAME RXOVER)
PORTABILITY ISSUES |
Windows () |
fileName comX: X 1 4(notation) 1 9 9 |
\\.\comX X () Windows 95 Windows 98 |
Windows NT |
Tcl Tcl (keystroke) 16-bit 32-bit Tcl |
Tcl () |
Windows 95 |
16-bit DOS () 16-bit DOS 16-bit DOS |
Tcl 32-bit Tcl 32-bit Tcl |
Tcl () |
Tcl 16-bit DOS open 16-bit DOS 16-bit DOS |
Macintosh |
Macintosh |
Macintosh |
Unix |
fileName /dev/ttyX X a b(pseudo-file) |
Tcl Tcl Tcl Tcl () |
exec |
SEE ALSO |
file(n), close(n), filename(n), fconfigure(n), gets(n), read(n), |
puts(n), exec(n), fopen(1) |
KEYWORDS |
access mode, append, create, file, non-blocking, open, permissions, |
pipeline, process, serial |
[] |
|
[] |
2001/10/16 |
Linux man : |
http://cmpp.linuxforum.net |