如何检查RPM .spec文件中是否存在文件？

Question

I have a spec file that needs to check if an older version of a file exists and if so delete it. For some reason, it is running the delete command regardless of whether the file exists and printing a "no such file or directory" error, which leads me to believe my if statement checking if the file exists is at fault. Here is my code.

if [ -e "/foo/bar/file.zip" ]; then
    rm -rf /foo/bar/file.zip
fi

Any help is appreciated.

Answer 1

That rm -rf command cannot be the source of that error message because -f tells rm to never fail (and to never print such error messages, try it locally rm -f /this/is/some/path/that/does/not/exist; echo $? ). (This means, of course, that the test for file existence itself is unnecessary since rm -f does not care.

Additionally you do not need the -r flag if you are deleting a file (and it is safer not to include it (or -f ) when you do not need them.

So something else must be printing that message. Do you use that file anywhere else? Does anything from the old package's %preun use it perhaps?

Answer 2

[ -f /foo/bar/file.zip ] && rm -f /foo/bar/file.zip || echo "File Not Found"

Answer 3

It's possible that you didn't add a space between the file path and -e :

if [ -e"/foo/bar/file.zip" ]; then
    rm -rf /foo/bar/file.zip
fi

It would be synonymous to this which is always true:

if [ -n "-e/foo/bar/file.zip" ]; then
    rm -rf /foo/bar/file.zip
fi