[9fans] grep: How to filter by plain, non-regexp, string?

[9fans] grep: How to filter by plain, non-regexp, string?

[kalterdev]

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The general problem is to print lines that contain a string. The
content of the string could be taken from anywhere. It could be a
filename or user input.

In POSIX world, people do grep -F. Plan 9's grep, though, doesn't have
this option.

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Re: [9fans] grep: How to filter by plain, non-regexp, string?

[akw]

From grep(1):

          Care should be taken when using the shell metacharacters
          $*[^|()=\ and newline in pattern; it is safest to enclose
          the entire expression in single quotes '...'.  An expression
          starting with '*' will treat the rest of the expression as
          literal characters.

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Re: [9fans] grep: How to filter by plain, non-regexp, string?

[Charles Forsyth]

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one reason still to have groups like this is to post things like that so
that in some distant future,
you'll think "wait, i'm sure i read something about this" and look up
the details.
In the now very old days, one of the purposes of man pages was to pack as
much technical detail
as was feasible into a sort of book you could read through, not to memorise
but to remember that
you'd seen it somewhere (and where else would it be, then).

On Mon, 30 Sept 2024 at 22:06, <akw@oneiri.one> wrote:

> From grep(1):
> 
> Care should be taken when using the shell metacharacters
> $*[^|()=\ and newline in pattern; it is safest to enclose
> the entire expression in single quotes '...'.  An expression
> starting with '*' will treat the rest of the expression as
> literal characters.

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