[LTP] Policy regarding BASH

[Stanislav Kholmanskikh <stanislav.kholmanskikh@oracle.com>]

Hi!

During looking into shell testcases I came across a situation where
* main shell script is a bash script (ie it has #!/bin/bash in the header)
* for each testcase number main shell script executes a separate (child) 
shell-script which has #!/bin/sh in the header

So If I try to run main script on Debian (where /bin/sh  points to 
/bin/dash) I get error like this:
root@debian7-x64:/opt/ltp/testcases/bin# ./run_cpuset_test.sh 3
TEST 3: CPUSET CONTROLLER TESTING
TEST STARTED: Please avoid using system while this test executes
./cpuset_exclusive_test.sh: 34: ./cpuset_funcs.sh: arithmetic 
expression: expecting primary: "N_NODES++"

So what is the policy regarding bash presence in LTP? Is it permitted to 
write testcases using bash specific features?
Or are we strongly encouraged to use "common shell" only?

And how should I proceed with this particular testcase? Try to remove 
"bashism" or just change header of child scripts from "#!/bin/sh" to 
"#!/bin/bash"?

Thank you.






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