[ale] I need a bash clue.

[James P. Kinney III]

for i in `find . -type d` ;do cd $i; etags *.c; cd -; done

On Thu, 2004-05-13 at 18:30, Joe Knapka wrote:
> I could solve this with a trivial Python program, but I'd rather
> understand how to make bash do it on the command line, if it can be
> done.
> 
> The task is: starting at the current directory, visit every directory
> in the subtree and run "etags" on every .c|.cc|.cpp|.h|.hpp file in
> each directory, leaving the resulting TAGS file in the directory
> containing the source files. I've tried the obvious
> 
>  find . -type d -exec ( pushd {} ; etags *.c ; popd ) ;
> 
> but that fails due to syntax errors on the parens. Escaping the parens
> leads to different syntax errors.
> 
> I *can* do 
> 
>  etags `find . ( -name "*.c" -o -name "*.cc" -o -name "*.cpp" ) -print`
> 
> But then the TAGS file gets created at the root of the tree I'm
> looking at, which isn't what I want. The structure of what I want to
> do is simple: visit each directory, make it current, and run a command
> (which may need to use shell characters). But how to actually feed
> that command to "find" is not obvious to me.
> 
> Yeah, I could read the bash man page for the Nth time, but I'm hoping
> someone here can answer the question more quickly from personal
> knowledge :-)
> 
> Thanks,
> 
> -- Joe
-- 
James P. Kinney III          \Changing the mobile computing world/
CEO & Director of Engineering \          one Linux user         /
Local Net Solutions,LLC        \           at a time.          /
770-493-8244                    \.___________________________./
http://www.localnetsolutions.com

GPG ID: 829C6CA7 James P. Kinney III (M.S. Physics)
<jkinney at localnetsolutions.com>
Fingerprint = 3C9E 6366 54FC A3FE BA4D 0659 6190 ADC3 829C 6CA7
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