SPUG: Checking for ASCII files

Colin Meyer cmeyer at helvella.org
Tue May 15 14:38:23 CDT 2001


Lorraine,

On Tue, May 15, 2001 at 11:46:12AM -0700, Lorraine Johnson wrote:
> Hello,
> 
> I'm sure this is an old question, but I'm obviously looking in the wrong
> place for the answer....  We develop under Windows then copy source to an
> HP-UX box to build.  (Long story.)  We're writing a Unix Perl script to
> navigate the directories and convert the Windows newlines to Unix newlines.
> We know all the pieces but one: What is the best way to determine if a file
> is ASCII or non-ASCII?  

perl -e 'print $_, -T $_ ? " is" : " is not", " a text file\n" for (@ARGV)'

The operative is the -T file test.  See 'perldoc -f -T'  for more info.

-C.

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