Utility macro to delete a file

Attention : This code requires administrator privileges.

The `di_util_del_file` macro takes a `file` parameter representing the full path of the file to be deleted. It first checks for the file's existence using `%sysfunc(fileexist)`. If the file exists, it assigns a temporary fileref (`temp`) to it with `%sysfunc(filename)` and then deletes it with `%sysfunc(fdelete)`. If the file does not exist, an informational message is written to the SAS^© log.

Data Analysis

Type : EXTERNE

The macro operates on a file specified by its path, which is an external resource to the SAS program itself. No SASHELP data is used or created internally.

1 Code Block

MACRO di_util_del_file

Explanation :
This block defines the `di_util_del_file` macro. It uses the `%sysfunc(fileexist(...))` function to check if the file specified by the `file` parameter exists. If it does, it uses `%sysfunc(filename(...))` to assign a logical 'fileref' to the file, then `%sysfunc(fdelete(...))` to delete it from the file system. If the file does not exist, a message is sent to the SAS log via `%put`.

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1	%macro di_util_del_file(file=);
2	%IF %sysfunc(fileexist(&file)) ge 1 %THEN %DO;
3	%let rc=%sysfunc(filename(temp,&file));
4	%let rc=%sysfunc(fdelete(&temp));
5	%END;
6	%ELSE %put The file &file does not exist;
7	%mend di_util_del_file;

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