diff options
Diffstat (limited to 'doc/tell.n')
| -rw-r--r-- | doc/tell.n | 5 |
1 files changed, 2 insertions, 3 deletions
@@ -14,7 +14,6 @@ tell \- Return current access position for an open channel .SH SYNOPSIS \fBtell \fIchannelId\fR .BE - .SH DESCRIPTION .PP Returns an integer string giving the current access position in @@ -29,7 +28,9 @@ Tcl standard channel (\fBstdin\fR, \fBstdout\fR, or \fBstderr\fR), the return value from an invocation of \fBopen\fR or \fBsocket\fR, or the result of a channel creation command provided by a Tcl extension. .SH EXAMPLE +.PP Read a line from a file channel only if it starts with \fBfoobar\fR: +.PP .CS # Save the offset in case we need to undo the read... set offset [\fBtell\fR $chan] @@ -41,9 +42,7 @@ if {[read $chan 6] eq "foobar"} { seek $chan $offset } .CE - .SH "SEE ALSO" file(n), open(n), close(n), gets(n), seek(n), Tcl_StandardChannels(3) - .SH KEYWORDS access position, channel, seeking |