Derrick Stolee <derrickstolee@xxxxxxxxxx> writes: > On 7/19/2022 10:52 AM, Ævar Arnfjörð Bjarmason wrote: >> >> On Tue, Jul 19 2022, Shaoxuan Yuan wrote: >> >>> + ! grep -x "H sub/d" actual && >>> + grep -x "S folder1/d" actual >> >> This *might* be a portability problem, but probably not. It's listed in >> POSIX: >> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html >> >> But it appears we have no "grep" use of the "-x" option in-tree, at >> least from what I found with grepping.. > > It is helpful to recommend a working alternative when pointing out > an issue like this. > > Here, the '-x' option means to match the entire line. > > Would using ^ and $ help here? Yup, that would be quite reasonable and removes the need to use, learn about, or have your readers wonder about the "-x" option; I do not think I saw a grep that did not understand the option, though. Thanks.