Computer Hope
Microsoft => Microsoft DOS => Topic started by: lwkt on August 28, 2009, 01:21:38 AM
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When using the following code to check about the content of a text file (test.txt),
I get a blank screen and to quit by cntrl+C.
@echo off
findstr ^/ test.txt > nul
if %errorlevel%==0 (
echo Found!
) else (
echo No matches found
)
pause
exit
It works fine for ^\, ^| and ^?
Any idea about the problem?
Thanks,
Thomas
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Try:
Findstr /C:/ Test.txt > Nul
The others (\ ?) will probably work without being escaped, the pipe char will always have to be escaped.
Good luck.
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Yes, it works perfect.
May I know the reaon to add c:/ ?
Thanks,
Thomas
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In Findstr /C: is a switch and the following / is the string to be found as a literal. Don't confuse the switch /C: with the partition C:\
Entered at the Command Prompt Findstr/? shows:
Searches for strings in files.
FINDSTR [/B] [/E] [/L] [/R] [/S] [/I] [/X] [/V] [/N] [/M] [/O] [/P] [/F:file]
[/C:string] [/G:file] [/D:dir list] [/A:color attributes] [/OFF[liNE]]
strings [[drive:][path]filename[ ...]]
/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
strings Text to be searched for.
[drive:][path]filename
Specifies a file or files to search.
Use spaces to separate multiple search strings unless the argument is prefixed
with /C. For example, 'FINDSTR "hello there" x.y' searches for "hello" or
"there" in file x.y. 'FINDSTR /C:"hello there" x.y' searches for
"hello there" in file x.y.
Regular expression quick reference:
. Wildcard: any character
* Repeat: zero or more occurances of previous character or class
^ Line position: beginning of line
$ Line position: end of line
[class] Character class: any one character in set
[^class] Inverse class: any one character not in set
[x-y] Range: any characters within the specified range
\x Escape: literal use of metacharacter x
\<xyz Word position: beginning of word
xyz\> Word position: end of word
For full information on FINDSTR regular expressions refer to the online Command
Reference.
Hope this helps.
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Got it !! Thanks.