Read all files under each directory, recursively, following symbolic links only if they are on the command line. Note that if no file operand is given, grep searches the working directory. This is equivalent to the -d recurse option. 递归地读取每个目录下的所有文件,仅在符号链接位于命令行中时...
# Still a read only slave exports by default all the administrative commands # such as CONFIG, DEBUG, and so forth. To a limited extent you can improve # security of read only slaves using 'rename-command' to shadow all the # administrative / dangerous commands. slave-read-only yes #wuz...
If ACTION is recurse, read all files under each directory, recursively, following symbolic links only if they are on the command line. This is equivalent to the -r option. --exclude=GLOB Skip any command-line file with a name suffix that matches the pattern GLOB, using wildcard matching...
Read all files under each directory, recursively, following symbolic links only if they are on the command line. This is equivalent to the -d recurse option. 即,-r 选项指定递归读取所给目录下的所有文件,默认不处理符号链接文件,除非在命令行参数中提供了符号链接的文件名。 另外一个 -R 选项默认会...
--help Print a usage message briefly summarizing these command-line options and the bug-reporting address, then exit. -V, --version Print the version number of grep to the standard output stream. This version number should be included in all bug reports (see below). ...
Direct invocation as either'egrep'or'fgrep'isdeprecated.WhenFILEis-, read standard input.WithnoFILE, read .ifa command-line-risgiven, - otherwise.Iffewer than two FILEs are given,assume-h.Exitstatusis0ifanylineisselected,1otherwise;ifanyerroroccursand-qisnotgiven, theexitstatusis2. ...
Grep command allows you to search in subdirectories using -r option. -r tells grep to perform its search recursively. $grep -r arpit /etc/ this will read all files under each directory for a string arpit. By default, grep displays the entire line having the matched string. If you want...
无法找到匹配的文本:当使用grep时,可能会出现无法找到匹配的文本的情况。这可能是因为正则表达式的模式不正确,或者搜索的文件路径不正确。在使用grep时,可以通过调整正则表达式的模式或者检查文件路径来解决这个问题。 替换不生效:当使用sed进行文本替换时,可能会出现替换不生效的情况。这可能是因为替换的模式不正确,或者...
This is OK but it does not show the true power of grep. The above command only looks at one file. A cool example of using grep with multiple files would be to find all lines in all files in a given directory that contain the name of a person. This can be easily accomplished as fo...
directory name\n"); fprintf(stderr," and no file names, you must not have the -r option\n"); fprintf(stderr," set or you will get no output.\n"); fprintf(stderr," To search stdin (piped input), you must set -r\n"); fprintf(stderr," Tgrep will search ALL files in ALL ...