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Shell Programming and Scripting

Delete last characters in each column

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Top Forums Shell Programming and Scripting Delete last characters in each column
# 15  
Old 07-01-2013
Quote:
Originally Posted by Scrutinizer
It seems to me $1+0 converts the string to a number and then CONVFMT is used to convert the number to a string to represent it in the record $0

Compare:
Code:
$ echo 1.2345678901234 | awk '{$1+=0; print $0}' CONVFMT="%.6f" OFMT="%.11f"
1.234568
$ echo 1.2345678901234 | awk '{$1+=0; print $1}' CONVFMT="%.6f" OFMT="%.11f"
1.23456789012
$ echo 1.2345678901234 | awk '{$1+=0; print $0}' CONVFMT="%.11f" OFMT="%.6f"
1.23456789012
$ echo 1.2345678901234 | awk '{$1+=0; print $1}' CONVFMT="%.11f" OFMT="%.6f"
1.234568

Code:
$ echo 1.2345678901234 | awk '{$1+=0; print $1}' CONVFMT="%.6f" OFMT="%.15f"
1.234567890123400

Yes, you're right. I missed that CONVFMT and OFMT are both used for converting numbers to strings; CONFVMT is not used for converting strings to numbers.
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