- 【重要】Search for an exact string (disables regular expressions): grep --fixed-strings "exact_string" path/to/file - Search for a pattern in all files recursively in a directory, showing line numbers of matches, ignoring binary files: grep --recursive --line-number --binary-files=withou...
If an input file is a directory, use ACTION to process it. By default, ACTION is read, i.e., read directories just as if they were ordinary files. If ACTION is skip, silently skip directories. If ACTION is recurse, read all files under each directory, recursively, following symbolic lin...
this will look for all files containing filename in the file's name under the /path/to/dir, than for every file found, search for the line with searchstring and replace old with new. Though if you want to omit looking for a specific file with a filename string in the file's name,...
Typically PATTERNS should be quoted when grep is used in a shell command. A FILE of “-” stands for standard input. If no FILE is given, recursive searches examine the working directory, and nonrecursive searches read standard input. In addition, the variant programs egrep, fgrep and ...
grep: This is a test string.: No such file or directory 可以看到,当前目录下有一个 testfile 文件,它里面只有一行 "This is a test string." 字符串。 grep "string" testfile 命令会在 testfile 文件中查找 "string" 字符串,找到后打印出对应的行。 grep "string" "testfile" 命令也是在 testfile...
grep: This is a test string.: No such file or directory 可以看到,当前目录下有一个 testfile 文件,它里面只有一行 "This is a test string." 字符串。 grep "string" testfile 命令会在 testfile 文件中查找 "string" 字符串,找到后打印出对应的行。
--context=NUM print NUM lines of output context-NUM same as--context=NUM--group-separator=SEP use SEP as a group separator--no-group-separator use empty string as a group separator--color[=WHEN],--colour[=WHEN] use markers to highlight the matching strings;WHENis'always','never',or'...
"word": This is the string pattern to search for. In this case, it's "word". filename.txt: This is the name of the file to search within. 4. Search for a word recursively in all files in a directory: Code: grep -r "word" directory/ ...
More resources are used when colouring is enabled, because pcregrep has to search for all possible matches in a line, not just one, in order to colour them all. The colour that is used can be specified by set- ting the environment variable PCREGREP_COLOUR or PCREGREP_COLOR. The value ...
a 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 ...