grep(1): Add more EXAMPLES

[fernape]

Summary

• Add more EXAMPLES covering flags: -A, -B, -c, -f, -i, -H, -l, -q, -R, -w
• While here, change existing wording to use the imperative (remove "To find")
• Reword first example to be consistent with how grep(1) understand words (-w)

Test Plan

• mandoc -Tlint clean
• igor clean
• aspell happy
• man ./grep.1 renders the page properly

[bcr]

The examples look good. Maybe another one to show how to do a case-sensitive search (i.e. just uppercase)?

usr.bin/grep/grep.1

459 ↗

(On Diff #79698)

I'd just use "word" or "pattern" here instead of text to be consistent.

[fernape]

Be consistent with the descriptions of the examples.

Suggested by bcr@

[fernape]

In D27264#608857, @bcr wrote:

The examples look good. Maybe another one to show how to do a case-sensitive search (i.e. just uppercase)?

Except for the example with -i the rest of them are case sensitive. The example reading from the standard input uses the uppercase BSD in case sensitive mode. Do you mean a separate example?

Thanks!

In D27264#608857, @bcr wrote:

The examples look good. Maybe another one to show how to do a case-sensitive search (i.e. just uppercase)?

[bcr]

In D27264#608939, @fernape wrote:

In D27264#608857, @bcr wrote:

The examples look good. Maybe another one to show how to do a case-sensitive search (i.e. just uppercase)?

Except for the example with -i the rest of them are case sensitive. The example reading from the standard input uses the uppercase BSD in case sensitive mode. Do you mean a separate example?

Thanks!

Right, I was thinking of a separate example at the beginning. Something along the lines of "Search for exactly this pattern ignoring case." You could combine this with count, so that for an input like
BSD
bsd

you'd get different counts for -i or without it.

[fernape]

• Add new example with upper case and redo the previous one to show the difference when using -i (suggested by bcr@)

• Remove -i from two examples since that flag is covered earlier

• s/showing/show in the descritption of an example

[bcr]

Excellent, that looks good now. Thank you!

[fernape]

In D27264#609214, @bcr wrote:

Excellent, that looks good now. Thank you!

Thanks for the review!