Mina .Is your shell script called directly from the conc manager? If so you need to symbolically link it with the FND Shell script process program fndcpesr as it is this process that is run by a Host concurrent executable. .Scripts run in this manner need a .prog extension. . .If it is not run directly from the conc manager then how exactly are you launching it? What shell is it running under? The shell is important as this will dictate the exact flavour of unix commands being used. . .As a final note before you come back with more info have you checked the permissions of the files concerned. As a default make sure they're all accessible with a chmod 777 etc.
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