" I also recognized which i could not redirect STDERR without having also redirecting STDOUT. The answer where by programA sends STDOUT to STDIN of programB, then redirects STDERR to some log file: programA 2> /var/log/programA.log AkeoAkeo 20611 silver badge44 bronze badges Add a remark I realize that is a https://ingmarh159hsb5.wikilentillas.com/user