Is there a command I can use to easily find the path to an executable? I'm looking for identify on my local machine - something like pwd?
pwd identify => /usr/local/bin/identify
It depends on what you're looking for. Most of the utilities depend on the path variable. However, if what you're looking for is in your path chances are you don't really need to know where it is unless there are multiple copies of the same executable.
This doesn't apply to most things running in OSX though because they aren't run quite like normal linux/unix binaries. Here are some methods to find things that aren't in your path statement.
This will find anything that exists on the file system you give as the first argument. It need to run as root to search private directories. It also supports wildcards if you're not completely sure of the name.
If you have the file in finder you can open a terminal window and drop the file into it. Terminal with then display the full path to the file.
Pretty self explanatory. You're donating processor cycles to allow it to keep an index of your fi
If you use the bash builtin
If the command is a function, it will list the function definition:
These examples are from a Ubuntu system, but the results will be similar for OS X.