topic Re: Name Changing in Operating System - HP-UX

Name Changing

Edward Smith_1 — Thu, 23 Jan 2003 23:45:45 GMT

I have a dilemia. I have a lot of files with mixed cases (upper and lower) (Example: fileEXAMPLE.SH, TESTfile.sh). I need to write a script to insert underscores between the case changes (Example: File named fileEXAMPLE.SH would change to file_EXAMPLE.SH). Can anyone help??

EDIT:
Script needs to be in the UNIX Korn Shell.

Re: Name Changing

Dietmar Konermann — Fri, 24 Jan 2003 09:30:21 GMT

The korn shell does not have real regular expressions... so I think the task would be difficult.

I would use the sed to do the actual replacement.

sed -e 's/$^[a-z][a-z]*$$[A-Z][A-Z]*$/\1_\2/g' -e 's/$^[A-Z][A-Z]*$$[a-z][a-z]*$/\1_\2/g'

Best regards...
Dietmar.

Re: Name Changing

Dietmar Konermann — Fri, 24 Jan 2003 09:43:29 GMT

Oops, just saw that I left the '^' in the expressions. You should leave it the case changes more than once in a file name and you want multiple '_'.

Re: Name Changing

Jean-Louis Phelix — Fri, 24 Jan 2003 10:17:35 GMT

Hi,

Perhaps a shorter variant of Dietmar solution :

sed -e 's/[a-z][a-z]*/&_/g' -e 's/[A-Z][A-Z]*/&_/g' -e 's/_$//'

Regards

Re: Name Changing

Jean-Louis Phelix — Fri, 24 Jan 2003 10:23:24 GMT

Sorry ... Dietmar solution seems better, because I have a problem with dots ! Although this one is not genral but works ...

sed -e 's/[a-z][a-z]*/&_/g' -e 's/[A-Z][A-Z]*/&_/g' -e 's/_$//' -e 's/_\././'

Regards.

Re: Name Changing

Dietmar Konermann — Fri, 24 Jan 2003 10:33:00 GMT

Hi, Jean-Louis!

[NIT-PICK MODE ON]

What happens with e.g. "aaa111"?

[NIT-PICK MODE OFF]

:-)
Dietmar.

Re: Name Changing

Jean-Louis Phelix — Fri, 24 Jan 2003 11:20:01 GMT

Well Dietmar ... I could perhaps simply admit that your solution works and mine doesn't ? Or I could say that I only wanted to demonstrate the use of '&' :^) ...

By the way, I wanted to tell you that I apreciate a lot your contributions to this forum. Fast and efficient !

Regards.

Re: Name Changing

W.C. Epperson — Fri, 24 Jan 2003 18:26:58 GMT

Dietmar:

[NIT-NIT-PICK MODE ON]

Where's the case change in "aaa111"?

[NIT-NIT-PICK MODE OFF]

;)

Re: Name Changing

Jack Werner — Fri, 24 Jan 2003 19:22:49 GMT

Excuse me! Relational expressions are certainly part of and supported by Korn-shell. Reference the O'Reilly Korn-Shell Programming book.

Re: Name Changing

Jerome Salyers — Wed, 29 Jan 2003 14:23:00 GMT

just for another perspective, i whipped up a little simple perl script which does this same thing, which a few checks...

if you like...

the file is already in UNIX... don't forget to change the directory of perl on the first line...

ciao

jerome

EDIT
the script can be run from ksh ;)

see attached