Shell Programming and Scripting

Hi there,

I have a small question (most like a true beginners question ).

In a script I have a filename stored in variable (vFile). Through the an input parameter this variable gets its value (for instance cookie.txt).

Two new variables are created with the value of vFile, but with a different extension (*.err and *.out). See code below.

Until now that value in vFile always had the extension *.txt. This will change, so it will not always be *.txt.

So the script has to be changed so no matter what extension the input-filename has, that the variable "vErrFile" will be filled with the filename, but with the extension "err". Same for vOutFile, but then with the extension "out".

Could anyone give me some directions how to do this in a simple way?

Thanks in advance.
Rob.

Code:

vDirectory=${1} ;# Directory where the file resides
vFile=${2}      ;# The file

vErrFile="`echo ${vFile} | sed -e 's/txt/err/g'`"
vOutFile="`echo ${vFile} | sed -e 's/txt/out/g'`"

Try (in bash):

Code:

vErrFile="${vFile%.*}.err"
vOutFile="${vFile%.*}.out"

Thanks. This works great!!!