goto.1 - nroff source : Read goto(I) in pdf, ps, or txt form.
goto - command transfer
Goto is allowed only when the Shell is taking commands from a file.
The file is searched from the beginning for a line beginning with `:'
followed by one or more spaces followed by the label. If such a line
is found, the goto command returns. Since the read pointer in the com-
mand file points to the line after the label, the effect is to cause
the Shell to transfer to the labelled line.
`:' is a do-nothing command that is ignored by the Shell and only
serves to place a label.