compare generated-sha1sum of a given file to a sum_string
#!/bin/bash
# Usage:
# sha1sum_file_vs_sumstr.sh /path/to/file sum_str
sha1sum "$1"
sha1_result=$(sha1sum "$1")
sum=${sha1_result%% *}
echo
echo $sum
diff <(echo $sum) <(echo $2) && echo "Compare is OK."