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Linux how to use the awk command to delete duplicate lines of text, I believe that many inexperienced people do not know what to do, so this article summarizes the causes of the problem and solutions, through this article I hope you can solve this problem.

The test text is as follows:

# cat 1.txt2.1.10.12.1.10.22.11.0.12.11.0.2

If the array subscript is not quoted, it will be forced to be converted to a number in this special case, resulting in statistical failure:

# awk 'BEGIN {FS=OFS= "."} {if (! a [$1.13. 3] +) print}' 1.txt2.1.10.1# awk-F'.'{a [$1.13. 3] +;} END {for (i in a) print I "" a [I]} '1.txt2110 4

After the array subscript is enclosed in quotes, everything returns to normal:

# awk 'BEGIN {FS=OFS= "."} {if (! a [$1 "." $2 "." $3] +) print}' 1.txt2.1.10.12.11.0.1# awk-F'.'{a [$1 "." $2 "." $3] + + } END {for (i in a) print I "" a [I]} '1.txt2.11.0 22.1.102 after reading the above, do you know how to use the awk command in linux to delete duplicate lines of text? If you want to learn more skills or want to know more about it, you are welcome to follow the industry information channel, thank you for reading!

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