Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.1k views
in Technique[技术] by (71.8m points)

shell - setting the output field separator in awk

I'n trying this statement in my awk script (in a file containing separate code, so not inline), script name: print-table.awk

BEGIN {FS = "";OFS = "," ; print "about to open the file"}
{print $0}
END {print "about to close stream" }

and running it this way from the shell

awk -f print-table.awk table

Where table is a tab separated file, My goal is to declare the field separator (FS) and the output field separator (OFS) within the external function, and calling from the shell simply the

awk -f file input

without setting the field separator in the command line with -F"" and without stdout it to a sed statement replacing the tab with a comma,

Any advise how can i do that?

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

You need to convince awk that something has changed to get it to reformat $0 using your OFS. The following works though there may be a more idiomatic way to do it.

BEGIN {FS = "";OFS = "," ; print "about to open the file"}
{$1=$1}1
END {print "about to close stream" }

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...