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authorTodd Lyons <tlyons@exim.org>2012-07-19 08:59:08 -0700
committerTodd Lyons <tlyons@exim.org>2012-07-19 08:59:08 -0700
commit9471b034a78d53e4bfb951649e9f556cf4e6018c (patch)
treec9e2cfc927d5a8788b6c2f9355a95f5f1b0fc878
parenta543079f3c7a2ca09a90a9728a9726439f33eb60 (diff)
Add example ACL usage of ${run in exim spec.
-rw-r--r--doc/doc-docbook/spec.xfpt14
1 files changed, 14 insertions, 0 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt
index c8ed79102..19fb321ea 100644
--- a/doc/doc-docbook/spec.xfpt
+++ b/doc/doc-docbook/spec.xfpt
@@ -9405,6 +9405,20 @@ can be the word &"fail"& (not in braces) to force expansion failure if the
command does not succeed. If both strings are omitted, the result is contents
of the standard output/error on success, and nothing on failure.
+.vindex "&$run_in_acl$&"
+The standard output/error of the command is put in the variable &$value$&.
+In this ACL example, the output of a command is logged for the admin to
+troubleshoot:
+.code
+warn condition = ${run{/usr/bin/id}{yes}{no}}
+ log_message = Output of id: $value
+.endd
+If the command requires shell idioms, such as the > redirect operator, the
+shell must be invoked directly, such as with:
+.code
+${run{/bin/bash -c "/usr/bin/id >/tmp/id"}{yes}{yes}}
+.endd
+
.vindex "&$runrc$&"
The return code from the command is put in the variable &$runrc$&, and this
remains set afterwards, so in a filter file you can do things like this: