Open System Services Shell and Utilities Reference Manual (G06.25+, H06.03+)

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User Commands (m - o) osh(1)

11. Passing text and multiple shell commands using a TACL macro as a substitute for a UNIX

Here-document:

?TACL MACRO

#FRAME

==

== First, create a Guardian ﬁle named msg

== containing text. To do this,

== add the TACL variable to be used, then

== place character strings in it.

==

#PUSH msg

#APPEND msg ****************

#APPEND msg * Hello world! *

#APPEND msg ****************

[ #IF [#FILEINFO/EXISTENCE/ msg] |THEN|

SINK [#PURGE msg] ]

==

== Write the variable to the Guardian ﬁle

==

VARTOFILE msg msg

==

== Next, create a Guardian ﬁle named cmds

== containing OSS shell commands. To do this,

== add the TACL variable to be used, then

== place character strings in it.

==

#PUSH cmds

#APPEND cmds echo ’cp msg /tmp/msg’

#APPEND cmds cp msg /tmp/msg

#APPEND cmds echo ’cat /tmp/msg’

#APPEND cmds cat /tmp/msg

#APPEND cmds echo ’rm /tmp/msg’

#APPEND cmds rm /tmp/msg

[ #IF [#FILEINFO/EXISTENCE/ cmds] |THEN|

SINK [#PURGE cmds] ]

==

== Write the variable to the Guardian ﬁle

==

VARTOFILE cmds cmds

==

== Now, run a shell to process the commands

== in the Guardian ﬁle cmds

==

osh +ls cmds

==

== Remove no longer needed Guardian ﬁles

==

SINK [#PURGE cmds]

SINK [#PURGE msg]

#UNFRAME

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