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Akinza
Akinza

Reputation: 157

Is there any equivalent command grep -nP "\t" some_file , using sed or awk

I am trying to find the occurance of tab in a file some_file and print those line with leading line number. grep -nP "\t" some_file works well for me but I want sed or awk equivalent command for the same.

Upvotes: 2

Views: 522

Answers (2)

January
January

Reputation: 17120

Well, you can always do it in sed:

cat -n test.txt | sed -n "/\t/p"

Unfortunately, sed can only print line numbers to stdout with a new line, so in any case, more than one command is necessary. A more lengthy (unnecessary so) version of the above, but one only using sed, would be:

sed = test.txt | sed -n "N;s/\n/ /;/\t/p"

but I like the one with cat more. CATS ARE NICE.

Upvotes: 2

Steve
Steve

Reputation: 54532

To emulate: grep -nP "\t" file.txt

Here's one way using GNU awk:

awk '/\t/ { print NR ":" $0 }' file.txt

Here's one way using GNU sed:

< file.txt sed -n '/\t/{ =;p }' | sed '{ N;s/\n/:/ }'

Upvotes: 3

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