For filename expansion, the 'find' utility's '-name' option seems to function similarly, but not exactly the same as the bash shell's builtin pattern matching.
Here are the relevant sections of the GNU reference manual: - Bash shell pattern matching: http://www.gnu.org/software/bash/manual/bashref.html#Pattern-Matching - 'find' utility pattern matching: http://www.gnu.org/software/findutils/manual/html_mono/find.html#Shell-Pattern-Matching This is very confusing on its own. To add to this confusion, section 2.1.4 of 'find' utility's man page (referenced above) is entitled "Shell Pattern Matching", which implies that 'find' is using the shell's builtin pattern matching functionality. However, this does not appear to be the case because according to the 'find' man page (http://goo.gl/ngQTKx), under '-name pattern', it says the following: "The filename matching is performed with the use of the fnmatch(3) library function. Don't forget to enclose the pattern in quotes in order to protect it from expansion by the shell." >From this, it sounds like it is not the shell that is performing the pattern matching, but the find utility using the fnmatch library. Here are my questions: 1. Is the bash shell's default filename expansion and pattern matching (extglob shell option disabled) different from that of the find utility using the -name option? 2. If so, what are those differences? 3. Does bash also use the fnmatch library or some other mechanism for filename expansion and pattern matching?
