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Full Discussion: "goto" like command in UNIX
Top Forums Shell Programming and Scripting "goto" like command in UNIX Post 302891386 by wisecracker on Wednesday 5th of March 2014 11:34:57 AM
Old 03-05-2014
Quote:
Originally Posted by fpmurphy
Sure it does. The break and continue statements are limited gotos. And are always translated to jumps in assembly language.
Ahhh, but the concept of GOTO a line number and/or label is alien to the shell.

Joke code that works, ;o)
(Note the smiley.)
Code:
#!/bin/sh
# goto
goto() { eval $1 ; }
label1() { echo "Test line 1." ; }
label2() { echo "Test line 2." ; }
label3() { echo "Test line 3." ; }
goto label1
goto label2
goto label3
goto label1
goto label2
goto label3

I know, I know, it is dreadful coding...
Results in CygWin:-
Code:
AMIGA:~> goto.sh
Test line 1.
Test line 2.
Test line 3.
Test line 1.
Test line 2.
Test line 3.
AMIGA:~> _

 

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LEARN ABOUT OPENSOLARIS

blstrictdom

blcompare(3TSOL)				       Trusted Extensions Library Functions					  blcompare(3TSOL)

NAME

       blcompare, blequal, bldominates, blstrictdom, blinrange - compare binary labels

SYNOPSIS

       cc [flag...] file... -ltsol [library...]
       #include <tsol/label.h>

       int blequal(const m_label_t *label1, const m_label_t *label2);

       int bldominates(const m_label_t *label1, const m_label_t *label2);

       int blstrictdom(const m_label_t *label1, const m_label_t *label2);

       int blinrange(const m_label_t *label, const brange_t *range);

DESCRIPTION

       These functions compare binary labels for meeting a particular condition.

       The blequal() function compares two labels for equality.

       The bldominates()  function compares label label1 for dominance over label label2.

       The blstrictdom()  function compares label label1 for strict dominance over label label2.

       The blinrange()	function compares label label for dominance over range->lower_bound and range->upper_bound for dominance over level label.

RETURN VALUES

       These functions return non-zero if their respective conditions are met, otherwise zero is returned.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       getplabel(3TSOL), label_to_str(3TSOL), libtsol(3LIB), ucred_getlabel(3C), label_encodings(4), attributes(5), labels(5)

       Determining the Relationship Between Two Labels in Solaris Trusted Extensions Developer's Guide

NOTES

       The functionality described on this manual page is available only if the system is configured with Trusted Extensions.

SunOS 5.11							    20 Jul 2007 						  blcompare(3TSOL)
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