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Deleting IFS Files in RPG IV
Published by: Bob Cozzi on 08 Feb 2011 view comments
The UNLINK API can be used from RPG IV to remove files from the IFS. The IFS is the stream file system of the IBM i operating system.
Syntax Diagram
return-code = unlink( ifs-file )
The following example illustrates unlink() being used in an RPG IV program. Note that control statements in this example allow it to be compiled at any release level of the IBM i operating system.
/IF DEFINED(*V6R1M0)
H MAIN(DLTIFS)
/ELSE
H BNDDIR('QC2LE')
/ENDIF
H DFTACTGRP(*NO) BNDDIR('RPGOPEN/RPGOPEN')
/INCLUDE rpgopen/qcpysrc,joblog
D DLTIFS PR EXTPGM('DLTIFS')
D unlink PR 10I 0 extProc('unlink')
D ifsFile * VALUE OPTIONS(*STRING)
/IF DEFINED(*V6R1M0)
P dltIFS B
/endif
D dltIFS PI
D oldFile S 640A
/IF NOT DEFINED(*V6R1M0)
C EVAL *INLR = *ON
/ENDIF
/free
oldFile = '/userfile/mystuff/sales.xls';
if ( unlink(%trimR(oldFile)) = -1);
joblog('Delete of %s failed.':%trimR(oldFile));
else;
joblog('File %s deleted.':%trimR(oldFile));
endif;
/end-free
/IF DEFINED(*V6R1M0)
P dltIFS E
/endif