[SunHELP] dirname command pipe failure

Jopson, Andy Andrew.Jopson at Rolls-Royce.com
Thu Jun 24 03:13:11 CDT 2004

Does anybody know why I can't write the following code as a pipe?

	temp=`echo $1 | tr '.' '/'`
	temp=`dirname $temp`
	echo $temp | tr '/' '.'

Like this:  echo $1 | tr '.' '/'` | dirname | tr '/' '.'

It just returns a . rather than the body of a filename (I wrote the code to
get whatever comes before the final dot in a filename i.e. it separates the
filename from it's extension). It appears that dirname (or basename for that
matter) doesn't function in a pipe command.

Andrew Jopson C.Eng MSc 
Thermotek Ltd
Thermal Analyst
Rolls-Royce Thermofluids
Sinfin, Derby (PCF-2)
Tel: +44 (0) (1332 2) 43487
Fax: +44 (0) (1332 2) 61319
Mobi: +44 (0) 7887 948971
Email: Andrew.Jopson at Rolls-Royce.com

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