What's the difference between these two find commands?
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The difference resides in the way the * character is interpreted by the shell. In the first instance the shell expands the wildcard matching all the files with the ".txt" suffix in the current working directory (if any) and the resulting command is something like:
this obviously gives an error. If no .txt files are present in the current working dir the wildcard passes intact to the find command and it works as below.
In the second instance the * is protected (escaped) from the shell expansion and the find command actually looks for files ending with .txt under the specified directory tree.
-name only takes a single argument, but crond.* expands into several arguments. -name eats the first match, but find assumes that the subsequent matches are additional paths to search.
I think quoting the wildcard will cause find to do the expansion itself, i.e. -name "crond.*"
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