'tail'명령에 해당하는 Windows

'tail'명령에 해당하는 Windows

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Windows 명령 줄에서 * nix tail 명령 을 시뮬레이션하는 방법이 있습니까? 파일이 있고 텍스트 의 처음 n 줄을 잘라내는 방법을 원합니다 . 예를 들면 :

D:\>type file.txt
line one
line two
line three
D:\>*[call to tail]* > result.txt

D:\>type result.txt
line two
line three

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정확히 동등한 것은 없습니다. 그러나 n 번째 줄 이후에 파일 출력을 시작하는 + n 옵션이있는 기본 DOS 명령 "more"가 있습니다.

DOS 프롬프트 :

C:\>more +2 myfile.txt

위의 명령은 처음 두 줄 이후의 모든 것을 출력합니다.
이것은 실제로 Unix head 의 반대입니다 .

Unix 콘솔 :

root@server:~$ head -2 myfile.txt

위의 명령은 파일의 처음 두 줄만 인쇄합니다.

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경우 당신이 윈도우 PowerShell을 설치 방금 cmd.exe를에서 실행할 수 있습니다 (I는 XP 이후 포함 생각)

헤드 명령 :

powershell -command "& {Get-Content *filename* -TotalCount *n*}"

꼬리 명령 :

powershell -command "& {Get-Content *filename* | Select-Object -last *n*}"

또는 PowerShell에서 직접 :

Get-Content *filename* -TotalCount *n*
Get-Content *filename* | Select-Object -last *n*

최신 정보

PowerShell 3.0 (Windows 8 이상) Tail은 alias Last. Head및 First별칭 TotalCount도 추가되었습니다.

따라서 명령은 다음과 같이 다시 작성할 수 있습니다.

Get-Content *filename* -Head *n*
Get-Content *filename* -Tail *n*

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more /e filename.txt P n

여기서 n은 표시 할 행 수입니다. 빠르게 작동하며 head명령 과 똑같습니다 .

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Windows로 포팅 된 표준 유닉스 도구 모음 인 GnuWin32 에서 CoreUtils 를 얻을 수 있습니다.

무엇보다도 머리가 포함되어 있습니다.

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이것은 완전한 해킹이지만 형식, 헤더 등을 검사하고 싶은 거대한 파일이고 해결책을 찾고 있다면 항상 'more'출력을 새 파일로 리디렉션하고 CTRL-C 빨리. 출력 행은 정확하게 제어 할 수 없으며 출력 행 중간에서 종료 할 가능성이 높지만 사용할 수없는 작은 파일을 잡는 저렴한 방법입니다.

전의.

C : \ more test.csv> test.txt 
^ C

C : \ more test.txt 
라인 1 
라인 2 
등 ......

씨:\

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Matt가 이미 언급 한 + n을 더 많이 사용하는 경우 긴 파일에서 일시 중지를 방지하려면 다음을 시도하십시오.

더 많은 +1 myfile.txt> con

When you redirect the output from more, it doesn't pause - and here you redirect to the console. You can similarly redirect to some other file like this w/o the pauses of more if that's your desired end result. Use > to redirect to file and overwrite it if it already exists, or >> to append to an existing file. (Can use either to redirect to con.)

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Well, this will do it, but it's about as fast as it looks (roughly O(n*m), where n is the number of lines to display and m is the total number of lines in the file):

for /l %l in (1,1,10) do @for /f "tokens=1,2* delims=:" %a in ('findstr /n /r "^" filename ^| findstr /r "^%l:"') do @echo %b

Where "10" is the number of lines you want to print, and "filename" is the name of the file.

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Powershell:

Get-Content C:\logs\result.txt -Tail 10

Get-Content C:\logs\result.txt -wait (monitor the tail)

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you can also use Git bash where head and tail are emulated as well

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Get-content -Tail n file.txt with powershell is the only thing that comes close to tail in linux.

The Get-Content *filename* | Select-Object -last *n* suggested above loads/parse the whole thing. Needless to say, it was not happy with my 10GB log file... The -Tail option does start by the end of the file.

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If you want the head command, one easy way to get it is to install Cygwin. Then you'll have all the UNIX tools at your disposal.

If that isn't a good solution, then you can try using findstr and do a search for the end-of-line indicator.

findstr on MSDN: http://technet.microsoft.com/en-us/library/bb490907.aspx

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There is a resource kit that can be downloaded from here: http://www.microsoft.com/downloads/en/confirmation.aspx?familyId=9d467a69-57ff-4ae7-96ee-b18c4790cffd&displayLang=en

It contains a tail.exe tool but it is only compatible with some Windows versions

(Copied from this post: Tail command for windows)

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FWIW, for those just needing to snip off an indeterminate number of records from the head of the file, more > works well. This is useful just to have a smaller file to work with in the early stages of developing something.

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I have not tried extracting a range, but I was able to get a line using the following DOS command:

find /N " " *.log|find "[6]" 

Since most files contain spaces, this command pulls every line from all LOG files and basically numbers them starting from 1 for each file. The numbered results are then piped into the second FIND command which looks for the line tagged as number 6.

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Here is a fast native head command that gives you the first 9 lines in DOS.

findstr /n "." myfile.txt | findstr "^.:"

The first 2 characters on each line will be the line number.

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There's a free head utility on this page that you can use. I haven't tried it yet.

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in PS try to use command:

Select -Last 1

This command can be pipelined also.

Example to get first line:

type .\out.txt | Select -Last 1

or to get the first line:

 type .\out.txt | Select -First 1

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set /p line= < file.csv 
echo %line%

it will return first line of your file in cmd Windows in variable %line%.

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As a contemporary answer, if running Windows 10 you can use the "Linux Subsystem for Windows".

https://docs.microsoft.com/en-us/windows/wsl/install-win10

This will allow you to run native linux commands from within windows and thus run tail exactly how you would in linux.

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I don't think there is way out of the box. There is no such command in DOS and batch files are far to limited to simulate it (without major pain).

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Warning, using the batch file for, tokens, and delims capability on unknown text input can be a disaster due to the special interpretation of chars like &, !, <, etc. Such methods should be reserved for only predictable text.

참고URL : https://stackoverflow.com/questions/1295068/windows-equivalent-of-the-tail-command