regex - matching a line with a literal asterisk "*" in grep

Question

asked Oct 24, 2021 in Technique[技术] by 深蓝 (71.8m points)

Tried

$ echo "$STRING" | egrep "(*)"

and also

$ echo "$STRING" | egrep '(*)'

and countless other variations. I just want to match a line that contains a literal asterisk anywhere in the line.

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1 Answer

深蓝 · Answer 1 · 2021-10-23T19:02:53+0000

answered Oct 24, 2021 by 深蓝 (71.8m points)

Try a character class instead

echo "$STRING" | egrep '[*]'

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