Forum: CFEngine Help
Subject: help with commands - append date to file
Author: matt_garman
Link to topic: https://cfengine.com/forum/read.php?3,23912,23912#msg-23912
Hi,
I'm just getting started with CFEngine3. I'm using the cfengine-community
package v3.2.1-1.el5 on CentOS 5.7.
I'm starting with the Make sure /tmp/test_plain exists example. Used as-is, it
works.
Next step: modify it to (1) run automatically via cf-agent, and (2) append the
output of the "date" command to the file every time it runs. This is what I
have:
bundle agent test1
{
vars:
"testfile" string => "/tmp/test_plain";
files:
"${testfile}" -> "Some Person",
comment => "Make sure ${testfile} exists",
create => "true";
commands:
"/bin/date >> ${testfile}"
comment => "Echo current date to our file";
}
This lives in a file named "test1.cf", which is included via the "inputs"
section of my promises.cf file. I also specify "test1" as part of my
bundlesequence in promises.cf.
I waited five minutes, constantly tailing the file, yet I never saw the date
appended. So if I try to run it explicitly via "cf-agent -f promises.cf", the
output is this:
R: --> CFE is running on
Q: ".../bin/date >> /t": /bin/date: extra operand `/tmp/test_plain'
Q: ".../bin/date >> /t": Try `/bin/date --help' for more information.
I: Last 2 quoted lines were generated by promiser "/bin/date >> /tmp/test_plain"
Here is a snippet from the same command with the -I and -v options:
cf3> =========================================================
cf3> commands in bundle test1 (1)
cf3> =========================================================
cf3>
cf3> -> Promiser string contains a valid executable (/bin/date) - ok
cf3>
cf3> .........................................................
cf3> Promise handle:
cf3> Promise made by: /bin/date >> /tmp/test_plain
cf3>
cf3> Comment: Echo current date to our file
cf3> .........................................................
cf3>
cf3> -> Executing '/bin/date >> /tmp/test_plain'
...(timeout=-678,owner=-1,group=-1)
cf3> -> (Setting umask to 77)
cf3> !! Finished command related to promiser "/bin/date >> /tmp/test_plain" --
an error occurred (returned 1)
cf3> Q: ".../bin/date >> /t": /bin/date: extra operand `/tmp/test_plain'
Q: ".../bin/date >> /t": Try `/bin/date --help' for more information.
cf3> I: Last 2 quoted lines were generated by promiser "/bin/date >>
/tmp/test_plain"
cf3> -> Completed execution of /bin/date >> /tmp/test_plain
cf3>
Of course if I manually run "/bin/date >> /tmp/test_plain" it works as
expected. So it seems CFEngine is doing something to my command.
Thanks,
Matt
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