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lang-bash
/foo/ { bar }is not the same as/foo/<newline>{bar}. The former means "If foo then do bar" while the latter means "If foo then print the current line. Always do bar". So your script wouldn't do what you want given that. I think you're also misunderstanding what>>means in awk and assuming it means the same as it does in shell but it doesn't. Just change>>to>in your script and then you won't need to remove/truncate the output file before each run.$1and$0and just doawk '/^#INV/ { sub(/^#/,"") ; out = $1".out" ; next } !/^#/ { print > out }' databut you shouldclose()the output files as you finish writing to them to avoid a "too many open files" error from most awks given a large enough input file (or a dramatic slowdown from GNU awk).