Region Copy: Modified prerequisite_check for conditional usage
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@ -7,7 +7,14 @@
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#confirms that executables required for succesful script execution are available
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prerequisite_check()
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{
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for prerequisite in basename ec2-create-snapshot ec2-create-tags ec2-describe-snapshots ec2-delete-snapshot date
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check_values=$1
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if [[ -z $check_values ]]
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then
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check_values='ec2-create-snapshot ec2-create-tags ec2-describe-snapshots ec2-delete-snapshot date'
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fi
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for prerequisite in basename $check_values
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do
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#use of "hash" chosen as it is a shell builtin and will add programs to hash table, possibly speeding execution. Use of type also considered - open to suggestions.
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hash $prerequisite &> /dev/null
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@ -292,6 +299,7 @@ fi
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#if region_copy_destinations is true, then run region_copy_EBS_Snapshots function
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if [[ -n $region_copy_destinations ]]
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then echo "Snapshot Copying to regions $region_copy_destinations is Starting Now."
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prerequisite_check ec2-copy-snapshot
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region_copy_EBS_Snapshots
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fi
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