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What does `grep -1` do?
I'm trying to make sense of the following shell command, to get a list of packages that can be updated:
dpkg --get-selections | xargs apt-cache policy {} | grep -1 Installed | sed -r 's/(:|Installed: ...
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answers
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`man bash | grep ulimit` returns nothing
I know that the builtin command ulimit is listed in the bash man page.
Grepping for it doesn't return anything though. Why?
grep and man both work fine, man bash | grep strings returns several ...
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