\"
\" Copyright (c) 2004-2019
\"      Jeffrey Allen Neitzel <jan (at) etsh (dot) nl>.
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TH GOTO 1 "March 28, 2019" "etsh-5.4.0" "General Commands Manual"
SH NAME
goto \- transfer command
SH SYNOPSIS
B goto
\fIlabel\fR [\fI...\fR]
SH DESCRIPTION
B Goto
is allowed only when the shell is taking
commands from a seekable command file (see
IR lseek (2)).
PP
The entire command file is searched for a line beginning
with a \fB:\fR as the first non-blank character,
followed by one or more blanks,
and then the
IR label .
If such a line is found,
B goto
repositions the command-file offset to
the line after the label and exits.
This causes the shell to transfer
to the labelled line.
PP
\fB:\fR is a special command which causes
the shell to do nothing.
SH "EXIT STATUS"
The
B goto
command exits with one of the following values:
TP
0
The label was found.
TP
1
The label was not found.
TP
2
An error was detected.
SH "SEE ALSO"
if(1),
etsh(1),
tsh(1)
PP
Etsh home page:
https://etsh.nl/
SH COMPATIBILITY
The
B goto
command from Version 6 (V6) UNIX
requires \fB:\fR to be the first character
on the labelled line.
Otherwise,
the label cannot be found.
PP
This port differs in that \fB:\fR may be preceded by blanks.
This allows labelled lines to be indented so that complex
command files might be easier to read and understand.
SH HISTORY
A
B goto
command
appeared as
I /bin/goto
in Version 3 (V3) UNIX.
SH AUTHORS
This port of the
B goto
command is derived from
Version 6 (V6) UNIX /usr/source/s1/goto.c.
It was written by Ken Thompson of Bell Labs.
Jeffrey Allen Neitzel
RI < [email protected] >
ported and maintains it as
IR goto (1).
SH LICENSE
See either the LICENSE file which is distributed with
B etsh
or
https://etsh.nl/license/
for full details.

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