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I am trying to clean an email list with huge data.

When I try this:

pv "Email-Raw.txt" | grep -vf <(sed 's/^/^/; s/$/$/' Segment00.txt) > RESULT-1.txt

I get grep: memory exhausted

How do I solve this? Please help.

  • What's the output of wc Segment00.txt? – Adrian Feb 11 at 3:57
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As, in this case, I wanted to match the EXACT MATCH of the whole line, I solved it by modifying the command to - pv "Email-Raw.txt" | grep -vxFf Segment00.txt) > RESULT-1.txt

Note: this may not work if you partially want to match text in each line.

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