People who are not used to working with shell may intellectually understand how the command line argument is massaged by the shell but still have a hard time visualizing the difference between letting the shell expand fileglobs and having Git see the fileglob to use as a pathspec.
Signed-off-by: Junio C Hamano <gits...@pobox.com> --- Documentation/gitcli.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/gitcli.txt b/Documentation/gitcli.txt index c4edf04..00b8403 100644 --- a/Documentation/gitcli.txt +++ b/Documentation/gitcli.txt @@ -42,6 +42,23 @@ When writing a script that is expected to handle random user-input, it is a good practice to make it explicit which arguments are which by placing disambiguating `--` at appropriate places. + * Many commands allow wildcards in paths, but you need to protect + them from getting globbed by the shell. These two mean different + things: ++ +-------------------------------- +$ git checkout -- *.c +$ git checkout -- \*.c +-------------------------------- ++ +The former lets your shell expand the fileglob, and you are asking +the dot-C files in your working tree to be overwritten with the version +in the index. The latter passes the `*.c` to Git, and you are asking +the paths in the index that match the pattern to be checked out to your +working tree. After running `git add hello.c; rm hello.c`, you will _not_ +see `hello.c` in your working tree with the former, but with the latter +you will. + Here are the rules regarding the "flags" that you should follow when you are scripting git: -- 1.7.12.322.g2c7d289 -- To unsubscribe from this list: send the line "unsubscribe git" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
