find filenames like unix commands

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# 1  
find filenames like unix commands


I need to write a small script to search in some specific directories to check if any file is present with a unix command name...
Means if the directory contains any files like cat, vi, grep, find etc i need to list those files into a file.

Please help
# 2  
u can have a shell script like "" which accepts a directory name as an argument.. may look like

#! /bin/sh
# u have to search for all the unix files one by one like and write to serach.log file. Below command will do the same for you
#find DIR_NAME name nameoffile > search.log
find DIR_NAME name cat > search.log
find DIR_NAME name grep > search.log

I am also new to linux.. this solution will work but only thing is the script will be as long as set of unix commands u want to find out.

# 3  
is there any option in find command for the purpose like:

find . -name "cat" -print

will print only the files named like cat.. if we can add multiple patterns in the place of cat , thats what i need.
# 4  
find . -type f | grep -E "cat|vi|grep"

Add further patterns by separating them with a pipe.
# 5  
If your version of find supports the -regexp flag, you can do
find dir -type f -regexp ".*\(cat\|vi\|grep\)"

find dir -type f -name cat -o -name vi -o -name grep

# 6  
Thanks buddies

find . -type f | grep -E "cat|vi|grep"

will get any files matching the pattern. Therefore if there is a file like "catert"
or "vides" they will also match cat and vi pattern and I want the exact pattern. I tried grep -Ex but not working.

There fore

find dir -type f -name cat -o -name vi -o -name grep

is the one which can be used I believe though it will become lengthier
# 7  
By using anchor and brackets in regular expression, you can achieve the same effect

$ DIRNAME=/usr/bin
$ find $DIRNAME -type f | egrep "^$DIRNAME/(cat|vi|grep)$"

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