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lang-bash
>>operator before"$logfile"to append to the log, though it's not clear if OP wants to overwrite or append...1>$LOGFILEin the Q, and with a timestamped log the file probably doesn't exist anyway. The redirection to the process substitution could of course be just1> >(...), but that doesn't matter either...dateas ts is not available and I can't easily obtain it (firewalls, other corporate stuff). I have tried this:exec 1>> >(date '+[%Y-%m-%d %I:%M:%S %p]: ' > "$logfile") 2>&1but all I get is a single line with the date output and nothing else.datewould just output the date once. what you need is a program that reads the input and passes it through with the date added. Did you look at the linked question? There's another answer there with more ways to do it, e.g. with Perl or just the shell anddate. (Of course you'll have to replace the pipe structure with the process substitution)