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what does ${5:-'N'} mean in Unix shell scripting

edited Aug 14, 2018 5:04AM in EBS Customizations (MOSC) 3 commentsAnswered

I am going thru a unix shell script that has the following code.

v_source_file=${5:-'N'}

v_dest_file=${6:-$v_source_file}

PS:-Not sure why i do not see a choice as shell scripting or unix in the PLACES drop down below. Please move it to the appropriate location

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