shell - 删除文本文件中包含特定字符串的行(Delete lines in a text file that contain a specific string)

Question

我将如何使用sed删除文本文件中包含特定字符串的所有行？

  ask by A Clockwork Orange translate from so

Answer 1

To remove the line and print the output to standard out:

(要删除行并将输出打印到标准输出，请执行以下操作：)

sed '/pattern to match/d' ./infile

To directly modify the file – does not work with BSD sed:

(要直接修改文件–不适用于BSD sed：)

sed -i '/pattern to match/d' ./infile

Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed:

(相同，但是对于BSD sed（Mac OS X和FreeBSD）–不适用于GNU sed：)

sed -i '' '/pattern to match/d' ./infile

To directly modify the file (and create a backup) – works with BSD and GNU sed:

(要直接修改文件（并创建备份）–与BSD和GNU sed一起使用：)

sed -i.bak '/pattern to match/d' ./infile