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strings Text to be searched for. [drive:][path]filename Specifies a file or files to search. Flags: /B Matches pattern if at the beginning of a line. /E Matches pattern if at the end of a line. /L Uses search strings literally. /R Uses search strings as regular expressions. /S Searches for matching files in the current directory and all ...
grep is a command-line utility for searching plaintext datasets for lines that match a regular expression.Its name comes from the ed command g/re/p (global regular expression search and print), which has the same effect.
The classic filter in Unix is Ken Thompson's grep, which Doug McIlroy cites as what "ingrained the tools outlook irrevocably" in the operating system, with later tools imitating it. [1] grep at its simplest prints any lines containing a character string to its output. The following is an example:
GNU grep, which supports a wide variety of POSIX syntaxes and extensions, uses BM for a first-pass prefiltering, and then uses an implicit DFA. Wu agrep, which implements approximate matching, combines the prefiltering into the DFA in BDM (backward DAWG matching). NR-grep's BNDM extends the BDM technique with Shift-Or bit-level parallelism. [54]
On the other hand, the various shells plus tools like awk, sed, grep, and BASIC, Lisp, C and so forth contributed to the Perl programming language. [5] Other shells that may be available on a machine or for download and/or purchase include: Almquist shell (ash) Nushell (nu) PowerShell (msh) Z shell (zsh, a particularly common enhanced KornShell)
The MKS Toolkit products offer functionality in the following areas: Command shell environments of Bourne shell, KornShell, Bash, C shell, Tcl shell; Traditional Unix commands (400+), including grep, awk, sed, vi, ls, kill [4]
"string" This command-line argument specifies the text string to find. [drive:][path]filename Specifies a file or files in which to search the specified string. Flags: /V Displays all lines NOT containing the specified string. /C Displays only the count of lines containing the string. /N Displays line numbers with the displayed lines.
PowerShell accepts strings, both raw and escaped. A string enclosed between single quotation marks is a raw string while a string enclosed between double quotation marks is an escaped string. PowerShell treats straight and curly quotes as equivalent. [61] The following list of special characters is supported by PowerShell: [62]