git-blame-loop

#!/bin/bash
#
#

usagestr=$(
cat <<EOF

$0 "string" path/to/file

Find every commit that has the given string in the given file.
Then, loop through each of those commits showing the first instance
of that string in each of the commits.

\0
EOF
)

usage() {
	echo -e "$usagestr"
	exit 1
}

[ $# -eq 2 ] || usage

foo=$(gitblame1 --oneline "$1"  "$2" | cut -d' ' -f1)

for commit in $foo; do
	git log -n1 --oneline $commit
	git show $commit | grep -B2 "$1"
	read
done