Search results
Results from the WOW.Com Content Network
agrep (approximate grep) is an open-source approximate string matching program, developed by Udi Manber and Sun Wu between 1988 and 1991, [26] for use with the Unix operating system. It was later ported to OS/2, DOS, and Windows. agrep matches even when the text only approximately fits the search pattern. [27]
grep is a command-line utility for searching plain-text data sets for lines matching a regular expression and by default reporting matching lines on standard output. tree is a command-line utility that recursively lists files found in a directory tree, indenting the filenames according to their position in the file hierarchy.
Matches the ending position of the string or the position just before a string-ending newline. In line-based tools, it matches the ending position of any line. ( ) Defines a marked subexpression, also called a capturing group, which is essential for extracting the desired part of the text (See also the next entry, \n). BRE mode requires \( \). \n
xargs (short for "extended arguments") [1] is a command on Unix and most Unix-like operating systems used to build and execute commands from standard input.It converts input from standard input into arguments to a command.
Patterns in PCRE2 can match these properties: e.g. \ p {Ps}.*? \ p {Pe} would match a string beginning with any "opening punctuation" and ending with any "close punctuation" such as [abc]. Matching of certain "normal" metacharacters can be driven by Unicode properties when the compile option PCRE2_UCP is set.
Extraction of line segments can typically be done by bytes (-b), characters (-c), or fields (-f) separated by a delimiter (-d — the tab character by default). A range must be provided in each case which consists of one of N, N-M, N-(N to the end of the line), or -M (beginning of the line to M), where N and M are counted from 1 (there is no ...
Last Line n G: Line n / text Forward Search for text . Text is interpreted as a regex. ? text Backward Search like / & text grep like filter n: Next Search Match N: Previous Search Match Esc u: Turn off Match Highlighting (see -g command line option) - c Toggle option c , e.g., -i toggles option to match case in searches
The script is a grep-like utility, expecting three command-line arguments: a base directory, a filename extension, and a (perl-compatible) regular expression. It scans the base directory for files with the given suffix, and print lines matching the regexp pattern.