Getting the duplicated line of a stream

This command is to get the duplicated row/line out of a text stream:

more text.txt | uniq -d

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Print specific column from a stream with pipe separator

This is the command to print a defined column out of a text stream which has pipe "|" separator.

example, given a text stream example.txt of:

test1|column 1 | row 1

test2|column 1 | row 2

test 3|column 1 | row 3

Need to extract to:

column1,row1

column1,row2

column1,row3

The command is:

more example.txt | awk 'BEGIN {FS="|"} {print $1 "," $2}'

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