Low: bash can do find and replace

[grooverdan]

Ok, shelling out to do find and replace when sh does it so easily urked me enough to write a patch.

tested with ./lvm.sh meta-data

[davidvossel]

is this a bashism?

[grooverdan]

Nope, all sh,
substitution ${a//x/y} and removing prefix/suffixes ${a%%xx} / ${a#xx} in the other PRs

and aside from that #!/bin/bash is the header of each file here.

[lge]

Note that while ${a#xx}, ##, %, %% are portable, ${a/x/y} is not.
try yourself: dash -c 'X=AAA; echo ${X//A/B}'

Which means these changes are ok for any resource agent with #!/bin/bash,
but not for those that announce themselves as #!/bin/sh

I did not check if you hit any of the latter, so your change may even be ok,
and only the statement "all sh" was wrong...

[grooverdan]

thanks @lge for the corrections. Will keep that in mind. Good to know dash does a good test.