Software:findstr
Other names | qgrep |
---|---|
Developer(s) | Microsoft, ReactOS Contributors |
Operating system | Windows, ReactOS |
Platform | Cross-platform |
Type | Command |
License | Windows: Proprietary commercial software ReactOS: GNU General Public License |
Website | docs |
In computing, findstr is a command in the command-line interpreters (shells) of Microsoft Windows[1][2] and ReactOS.[3] It is used to search for a specific text string in computer files.[4]
Overview
The command sends the specified lines to the standard output device.[5]
It is similar to the find
command. However, while the find
command supports UTF-16, findstr
does not. On the other hand, findstr
supports regular expressions, which find
does not.
The findstr
program was first released as part of the Windows 2000 Resource Kit under the name qgrep
.[6]
findstr
cannot search for null bytes commonly found in Unicode computer files.[7]
Syntax
FINDSTR flags strings [drive:][path]filename[...]
Arguments:
flags
This can be any combination of flags described below.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 subdirectories./I
Specifies that the search is not to be case-sensitive./X
Prints lines that match exactly./V
Prints only lines that do not contain a match./N
Prints the line number before each line that matches./M
Prints only the filename if a file contains a match./O
Prints character offset before each matching line./P
Skip files with non-printable characters./OFF[LINE]
Do not skip files with offline attribute set./A:attr
Specifies color attribute with two hex digits. See "color /?"/F:file
Reads file list from the specified file(/ stands for console)./C:string
Uses specified string as a literal search string./G:file
Gets search strings from the specified file(/ stands for console)./D:dir
Search a semicolon delimited list of directories
Note: Following command displays the detailed help about this command:
FINDSTR /?
Example
Save your running services into file _services.txt and search in this file for lines containing word "network" - case insensitive:
@echo off set searchstr=network net start>_services.txt FINDSTR /I "%searchstr%" _services.txt pause
output would be:
Network Connections Network List Service Network Location Awareness Network Store Interface Service Windows Media Player Network Sharing Service Press any key to continue . . .
See also
References
- ↑ Microsoft WinXP documentation for findstr
- ↑ Microsoft Server 2012/2016 documentation for findstr
- ↑ "Reactos/Reactos". 16 October 2021. https://github.com/reactos/reactos/blob/master/base/applications/findstr/findstr.c.
- ↑ MS-DOS and Windows command line findstr command
- ↑ Excellent documentation on usage of findstr
- ↑ History of Findstr from Raymond Chen
- ↑ Findstr - Search for strings - Windows CMD - SS64.com
Further reading
- Stanek, William R. (2008). Windows Command-Line Administrator's Pocket Consultant, 2nd Edition. Microsoft Press. ISBN 978-0735622623.
- John Paul Mueller (2007). Windows Administration at the Command Line for Windows Vista, Windows 2003, Windows XP, and Windows 2000. John Wiley & Sons. ISBN 978-0470165799.
External links
![]() | Original source: https://en.wikipedia.org/wiki/Findstr.
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