INCLAN: echo: Difference between revisions

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The '''echo''' variable determines which commands are echoed, i.e. copied to standard output before execution. The possible settings are:


"echo" is a variable that determines which commands are echoed, i.e. copied
; off
to standard output before execution. The possible settings are:
:Commands are not echoed.
;NULL
:(or not set at all) In macros, all commands except those built into the command line interpreter are echoed; interactive commands are not echoed.
;on
:Commands that are not built into the command interpreter are echoed regardless of whether they occur in macros or interactively.
;large
:Same as '''on''', except that the echo is surrounded by blank lines.
;full
:All commands are echoed, and the corresponding line numbers in macros are given.


off    Commands are not echoed.
Labels are not included in the echo, but variable substitutions are. Statements preceded by "@" are only echoed if '''echo''' has the value '''full'''.
NULL    (or not set at all) In macros, all commands except those built into
        the command line interpreter are echoed; interactive commands are
        not echoed.
on      Commands that are not built into the command interpreter are
        echoed regardless of whether they occur in macros or interactively.
large  Same as "on", except that the echo is surrounded by blank lines.
full    All commands are echoed, and the corresponding line numbers in
        macros are given.
 
Labels are not included in the echo, but variable substitutions are.
Statements preceded by "@" are only echoed if echo has the value "full".

Revision as of 23:39, 18 February 2009

The echo variable determines which commands are echoed, i.e. copied to standard output before execution. The possible settings are:

off
Commands are not echoed.
NULL
(or not set at all) In macros, all commands except those built into the command line interpreter are echoed; interactive commands are not echoed.
on
Commands that are not built into the command interpreter are echoed regardless of whether they occur in macros or interactively.
large
Same as on, except that the echo is surrounded by blank lines.
full
All commands are echoed, and the corresponding line numbers in macros are given.

Labels are not included in the echo, but variable substitutions are. Statements preceded by "@" are only echoed if echo has the value full.

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