If you need to search for a string of text, rather than just a single word, you will need to wrap the string in quotes. For example, what if we needed to search for the “My Documents” directory instead of the single-worded “Documents” directory? $ ls | grep 'My Documents' Grep...
grep[OPTION]...PATTERN[FILE]...Usage:grep[OPTION]...PATTERN[FILE]...SearchforPATTERNineachFILEor standard input.PATTERNis,bydefault,a basic regularexpression(BRE).Example:grep-i'hello world'menu.h main.c Regexp selection and interpretation:-E,--extended-regexpPATTERNis an extended regularexpr...
To search for all the lines of a file that don't contain a certain string, use the -voption to grep. The following example shows how to find all of the lines in the user medici's home directory files that don't contain the letter e: ...
grep - print lines matching a patterngrep [OPTIONS] PATTERN [FILE...] grep [OPTIONS] [-e PATTERN | -f FILE] [FILE...]
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 ...
Note:Learn how to use thexargs commandwithgrepto search for a string in a list of files. Search All Files in Directory To search all files in the current directory, use an asterisk (*) instead of a filename at the end of agrepcommand. ...
SearchforPATTERNineachFILEorstandard input. PATTERNis, bydefault, a basic regular expression (BRE). Example: grep -i'helloworld' menu.h main.c Regexp selectionandinterpretation: -E,--extended-regexp PATTERN is an extended regular expression (ERE)-F,--fixed-strings PATTERN is a set of newli...
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=without-match "search_pattern" path/to/directory ...
File and Directory Selection -a, --text Process a binary file as if it were text; this is equivalent to the--binary-files=textoption. --binary-files=TYPE If the first few bytes of a file indicate that the file contains binary data, assume(假定) that the file(二进制文件) is of type...
In this example, the for inside of grep uses two nested iterations -- one that iterates over all of the files found in the specified directory (where each file is bound to file , and one that iterates through all of the lines found inside the file currently being iterated (bound to th...