Throughout this guide, we’ve journeyed from the basics of grep exclusion to its more advanced features. We’ve discovered how to exclude multiple patterns, files, and directories, and even ventured into the wo
However, the regular expression may become lengthy and unreadable as the number of patterns grows. To mitigate this, we can specify the patterns individually. 2.2. Specify Multiple Patterns The-eflag allows us to specify multiple patterns through repeated use.We can exclude various patterns using th...
This option is most useful when multiple-eoptions are used to specify multiple patterns, or when a pattern begins with a dash (`-'). --exclude If specified, it excludes files matching the given filename pat- tern from the search.Note that--excludepatterns take priority over--includepatterns...
Matching Control -e PATTERN, --regexp=PATTERN Use PATTERN as the pattern. This can be used to specify multiple search patterns, or to protect a pattern beginning with a hyphen (-). (-e is specified by POSIX.) -f FILE, --file=FILE Obtain patterns from FILE, one per line. The empty...
Usage: grep [OPTION]... PATTERNS [FILE]... SearchforPATTERNSineach FILE. Example: grep -i'hello world'menu.h main.c PATTERNS can contain multiple patterns separated by newlines. Pattern selection and interpretation: -E, --extended-regexp PATTERNS are extended regular expressions ...
Usage: grep [OPTION]... PATTERNS [FILE]... Search for PATTERNS in each FILE. Example: grep -i 'hello world' menu.h main.c PATTERNS can contain multiple patterns separated by newlines. Pattern selection and interpretation: -E, --extended-regexp PATTERNS are extended regular expressions ...
If this option is used multiple times or is combined with the -f (--file) option, search for all patterns given. This option can be used to protect a pattern beginning with “-”. -f FILE, --file=FILE Obtain patterns from FILE, one per line. If this option is used multiple ...
Example: grep -i 'hello world' menu.h main.c PATTERNS can contain multiple patterns separated by newlines. Pattern selection and interpretation: -E, --extended-regexp PATTERNS are extended regular expressions -F, --fixed-strings PATTERNS are strings -G, --basic-regexp PATTERNS are basic ...
--exclude # 过滤不需要匹配的文件类型。 使用示例：grep -i "error" info.log grep -in "error"...
--exclude=PATTERN 在目录中递归搜索,但是跳过匹配PATTERN的文件。 -s,--no-messages 禁止输出关于文件不存在或不可读的错误信息。对于可移植性需要注意:与GNUgrep不同,传统的grep不遵守POSIX.2规范,因为传统的grep缺少一个-q选项,而它的-s选项与GNUgrep的-q选项行为相似。需要可移植到传统grep的 shell 脚本应当...