Sed, awk practical application

Others 2020-10-28 01:56:30 views: null

1. Add a header record to the data file

sed '1i\aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' test.dat > tmp.dat

2. Add a column to the data file (file separator is' | ', add the first column to the last column)

awk -F'[:|]' '{print $0,$1}' OFS="|" test.dat > test.dat.ok

awk -F'[:|]' '{print $0,"free style",$1}' OFS="|" test.dat > test.dat.ok

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Origin blog.csdn.net/sjmz30071360/article/details/83629539

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