Hello guys, I know this is an easy one but since I am new , I would have problems like this : I need to check weather a file exists or not under a certain directory ,, the file

$targetFile = "theFile"
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and I know the directory as well,

/bin/do/foo
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so I need to know if it exists under foo, knowing that I am not under foo when searching for that file or I could be as well, I tried the -e and local but don't seem to work ,, thanks for hints on this one .