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egrep_扩展grep
扩展grep(grep -E 或者 egrep)
egrep ‘NW|EA‘ testfile
northwest NW Charles Main 3.0 .98 3 34
eastern EA TB Savage 4.4 .84 5 20
2023-10-28 21:30:10
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egrep_扩展grep
扩展grep(grep -E 或者 egrep)
egrep ‘NW|EA‘ testfile
northwest NW Charles Main 3.0 .98 3 34
eastern EA TB Savage 4.4 .84 5 20
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