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- /tmp/GUDI/REWE> echo a b c d | awk '{ OFS = ":"; $2 = "" print $0; print NF }'
- awk: { OFS = ":"; $2 = "" print $0; print NF }
- awk: ^ syntax error
- /tmp/GUDI/REWE> awk 'BEGIN {three=$3, $3=$3-10} {print three, $3}' input.txt
- awk: BEGIN {three=$3, $3=$3-10} {print three, $3}
- awk: ^ syntax error
- /tmp/GUDI/REWE> awk ' three=$3, $3=$3-10 { print three, $3 }' input.txt
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