grep/awk/sed 或者并且否定

最新推荐文章于 2021-04-16 17:22:13 发布

转载最新推荐文章于 2021-04-16 17:22:13 发布 · 252 阅读

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本文详细介绍了如何使用Grep命令进行模式匹配，包括OR、AND和NOT操作符的应用。通过多种命令组合，如Grep、Awk及Sed，实现文件中特定模式的查找。无论是寻找包含多个关键词的行还是排除特定模式的行，本文都提供了实用的例子。

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Grep 'OR' Operator

Find all the lines in a file, that match any of the following patterns.

Using GREP command :

grep "pattern1\|pattern2" file.txt
grep -E "pattern1|pattern2" file.txt
grep -e pattern1 -e pattern2 file.txt
egrep "pattern1|pattern2" file.txt

Using AWK command :

awk '/pattern1|pattern2/' file.txt

Using SED command :

sed -e '/pattern1/b' -e '/pattern2/b' -e d file.txt

Grep 'AND' Operator

Find and print all the lines in a file, that match multiple patterns.

Using GREP command :

grep -E 'pattern1.*pattern2' file.txt # in that order
grep -E 'pattern1.*pattern2|pattern2.*pattern1' file.txt # in any order
grep 'pattern1' file.txt | grep 'pattern2' # in any order

Using AWK command :

awk '/pattern1.*pattern2/' file.txt # in that order
awk '/pattern1/ && /pattern2/' file.txt # in any order

Using SED command :

sed '/pattern1.*pattern2/!d' file.txt # in that order
sed '/pattern1/!d; /pattern2/!d' file.txt # in any order

Grep 'NOT' Operator

Find and print all the lines, that do not match a pattern.

Using GREP command :

grep -v 'pattern1' file.txt

Using AWK command :

awk '!/pattern1/' file.txt

Using SED command :

sed -n '/pattern1/!p' file.txt