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Full Discussion: A dash to GOTO or a dash from GOTO, that is the question...
Top Forums Shell Programming and Scripting A dash to GOTO or a dash from GOTO, that is the question... Post 303038985 by MadeInGermany on Thursday 19th of September 2019 01:30:24 AM
Old 09-19-2019
Isn't line_number always equal to or greater than start_line?
It works because the output file is truncated at the right moment.

I would rather go for
Code:
goto()
{
    line_copy=
    while IFS='' read -r line
    do
        [ "$line" = "$1" ] && line_copy=1
        [ -n "$line_copy" ] && echo "$line"
    done < "$0" > /tmp/goto.tmp
    . /tmp/goto.tmp
}

Eventually swap the two lines in the loop, to omit the first line (then you do not need to prefix the lable with a nop).

Of course this is a hack. A function puts something on the "return" stack...
This User Gave Thanks to MadeInGermany For This Post:
wisecracker
 

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LEARN ABOUT DEBIAN

setmaillist

setmaillist(1)						      General Commands Manual						    setmaillist(1)

NAME

       setmaillist - create a binary mailing list

SYNOPSIS

       setmaillist bin tmp

DESCRIPTION

       setmaillist reads a mailing list from its standard input.

       setmaillist writes the mailing list in a binary format to tmp; it then moves tmp to bin.  tmp and bin must be on the same filesystem.

       If there is a problem creating tmp, setmaillist complains and leaves bin alone.

       The binary mailing list format is portable across machines.

       setmaillist always creates bin world-readable.

MAILING LIST FORMAT

       The mailing list read by setmaillist is a series of lines.  NUL bytes are not allowed.

       If a line begins with a dot or slash, setmaillist takes the entire line as an include file name.

       If  a line begins with an ampersand, setmaillist takes the rest of the line as a recipient address.  If a line begins with a letter or num-
       ber, setmaillist takes the entire line as a recipient address.  Each recipient address must include a fully qualified domain name.  Recipi-
       ent addresses longer than 800 bytes are not allowed.

       setmaillist ignores blank lines and lines beginning with #.  It also ignores spaces and tabs at the ends of lines.

       For example,

	  god@heaven.af.mil
	  djb@silverton.berkeley.edu

       is a mailing list with two addresses.

SEE ALSO

       setforward(1), newinclude(1), printmaillist(1)

																    setmaillist(1)
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