" I also seen which i couldn't redirect STDERR without having also redirecting STDOUT. The answer where programA sends STDOUT to STDIN of programB, then redirects STDERR into a log file: programA 2> /var/log/programA.log Stack Trade network includes 183 Q&A communities which include Stack Overflow, the most important, most trusted https://gautamae184dyr4.blogproducer.com/profile