Batch scripting error after Linux conversion

Hello, We are in the process of converting from HP Unix to Linux (bash), and one of our shell scripts is giving an error on the first line of the code below. Code: if [ ! -f ${FILENAM}* ] then  error_out "${FILENAM} is not found" 1 $LINENO fi Where FILENAM is the first script parameter. Here is the error we're getting: Quote: line 42: [: too many arguments Do you know how the if-clause needs to be rewritten to avoid the error? I tried searching online, but have not found a satisfactory solution. Thank you, Art

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