Check for file with a particular extension in a particular directory

Shell Programming and Scripting
1

Hi,
I have a directory which I am passing in my script as a parameter. Parameter name has been set to $TCH_FILE_DIRECTORY.
I want to know if there's atleast 1 (or more) files in this directory with the extension '.tch'. How can I find this using ksh.

2 
[ $(ls ${TCH_FILE_DIRECTORY}/*.tch | wc -l) -gt 0 ] && echo "Found at least one file" || echo "No files found"
3

I read at some places about globs. Can globs be used to find out files with any extension in ksh. If yes, how?

4

globs is nothing more that the ability for the shell to expand a matched pattern
This is a glob *.tch . The shell will match and expand any string of any length followed by a period, followed by the string tch

What is not working for you?
Why don't you post what you have tried so far?

5

What did you read about glob? Did you get the context? the above post also uses them.

Another way

ls  ${TCH_FILE_DIRECTORY}/*.tch >/dev/null 2>&1 && echo found || echo not found