Sous Windows, quelles sont les différences entre les commandes findet findstr?
Les deux semblent rechercher du texte dans les fichiers:
trouver
C:\> find /?
Searches for a text string in a file or files.
FIND [/V] [/C] [/N] [/I] [/OFF[LINE]] "string" [[drive:][path]filename[ ...]]
/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.
/I Ignores the case of characters when searching for the string.
/OFF[LINE] Do not skip files with offline attribute set.
"string" Specifies the text string to find.
[drive:][path]filename
Specifies a file or files to search.
If a path is not specified, FIND searches the text typed at the prompt
or piped from another command.
findstr
C:\> findstr /?
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 occurences 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.
1
Il s'agit probablement davantage de l'évolution. Find remonte aux jours DOS / UNIX, et plus tard FINDSTR a été ajouté dans Windows. Les deux ont probablement évolué et se ressemblent.
—
KCotreau
Je suis d'accord avec la chronologie de @ KCotreau: FIND est ancien et FINDSTR est plus récent. Je doute que FIND ait évolué pour ressembler davantage à FINDSTR; Je crois plutôt que FIND a été conservé comme le dinosaure paralysé qu'il était (comme DOS, en général) afin de maintenir la compatibilité descendante (par exemple, avec les fichiers batch qui l'utilisent), tandis que FINDSTR a été ajouté pour fournir un ensemble décent de fonctionnalités .
—
Scott
Oh, et en passant, la commande DOS / Windows FIND ne ressemble en rien à la
—
Scott
findcommande Unix ; plutôt, comme paradroid le suggère ci-dessous, FIND est comme une version édulcorée de grep(ou peut-être fgrep).
ne voyez-vous pas les différences dans l'aide?
—
phuclv