Redirection Guide

• || visible in terminal || visible in file || existing
• Syntax || StdOut | StdErr || StdOut | StdErr || file
• ==========++==========+==========++==========+==========++===========
• > || no | yes || yes | no || overwrite
• >> || no | yes || yes | no || append
• || | || | ||
• 2> || yes | no || no | yes || overwrite
• 2>> || yes | no || no | yes || append
• || | || | ||
• &> || no | no || yes | yes || overwrite
• &>> || no | no || yes | yes || append
• || | || | ||
• | tee || yes | yes || yes | no || overwrite
• | tee -a || yes | yes || yes | no || append
• || | || | ||
• n.e. (*) || yes | yes || no | yes || overwrite
• n.e. (*) || yes | yes || no | yes || append
• || | || | ||
• |& tee || yes | yes || yes | yes || overwrite
• |& tee -a || yes | yes || yes | yes || append