Linuxใฎegrepใณใใณใใงๆจๆบๅ ฅๅใใใกใคใซใใใณใใณใใฉใคใณใไฝๆใใฆๅฎ่กใใๆนๆณใซใคใใฆใพใจใใพใใใ
xargsใณใใณใ
egrepใฏใ่คๆฐใฎๆค็ดขใไธๅบฆใซใงใใพใใ
ใพใใgrepใใใ้ซๅบฆใชๆญฃ่ฆ่กจ็พใไฝฟ็จใงใใพใใ
ใegrep [ใชใใทใงใณ] [ๆค็ดขใใฟใผใณ] ใใกใคใซ
| ใชใใทใงใณ | ๆฆ่ฆ |
|---|---|
| -i | ๆค็ดขใใ้ใใขใซใใกใใใใฎๅคงๆๅญๅฐๆๅญใๅบๅฅใใชใใ |
| -n | ใใใใใ่กใฎ่ก็ชๅทใ่กจ็คบ |
| -c | ใใใใใ่กๆฐใ่กจ็คบ |
| -v | ใใใใใชใ่กใ่กจ็คบ |
| -[ๆฐๅค] | ใใใใใ่กใฎๅๅพ่ก[ๆฐๅคๅ]ใ่กจ็คบ |
| -A [ๆฐๅค] | ใใใใใ่กใฎๅพ[ๆฐๅค]่กใ่กจ็คบ |
| -B [ๆฐๅค] | ใใใใใ่กใฎๅ[ๆฐๅค]่กใ่กจ็คบ |
| ไฝฟ็จใงใใๆญฃ่ฆ่กจ็พ | ๆฆ่ฆ |
|---|---|
| ^ | ่ก้ ญ |
| $ | ่กๆซ |
| . | ไปปๆใฎไธๆๅญ |
| [ab] | aใbใฎใใใใ |
| [a-z] | a๏ฝzใฎ็ฏๅฒใฎใใใใ |
| [^ab] | aใbใฎใใใใงใใชใ |
| [^a-z] | a๏ฝzใฎ็ฏๅฒใฎใใใใงใใชใ |
| + | 1ๅไปฅไธใฎ็นฐใ่ฟใ |
| * | 0ๅไปฅไธใฎ็นฐใ่ฟใ |
| {n} | nๅใฎ็นฐใ่ฟใ |
| {n}, | nๅไปฅไธใฎ็นฐใ่ฟใ |
| {n,m} | nๅไปฅไธmๅไปฅไธใฎ็นฐใ่ฟใ |
| r1 | r2 | ๆญฃ่ฆ่กจ็พr1ใr2ใฎใใใใ |
ใๅฎ่กไพ1ใ
data.txtๅ ใฎใใกใ3ๆกใฎๆฐๅญใๅซใ่กใ ใๅบๅใใพใใ
$ egrep '[0-9]{3}' data.txt
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