版权声明：本文为博主原创文章，未经博主允许不得转载。 https://blog.csdn.net/u011587401/article/details/81156339
#!/bin/sh
if git-rev-parse --verify HEAD >/dev/null 2>&1 ; then
against=HEAD
else
# Initial commit: diff against an empty tree object
against=4b825dc642cb6eb9a060e54bf8d69288fbee4904
fi
# Find files with trailing whitespace
for FILE in `exec git diff-index --check --cached $against -- | sed '/^[+-]/d' | sed -E 's/:[0-9]+:.*//' | uniq` ; do
# Fix them!
sed -i '' -E 's/[[:space:]]*$//' "$FILE"
git add "$FILE"
done