n번째 패턴 일치에 대한 내부 파일 대체

Question

변수에 저장하는 대신 모든 출력(한 줄에 하나씩)을 파일에 넣고 outf라고 말한 후 다음을 수행합니다.

$ sed -e "\\#${input1}#R outf" a

이는 GNU sed를 사용한다고 가정합니다. 변경 사항에 만족하면 -i 옵션을 도입하세요.

설명하다:

° Alternate delimiter needs to escaped by a backslash. In our case, # is the delimiter, so we escape it with a backslash.
° Wait a minute but I see two of them here, you'll be asking. Well coz, before what we write on the command line gets to sed is seen n processed by the shell. So since backslash is special within double quotes, we need to double it so that after shell has seen it, it shall be presented as one to sed. So the Universe is happy.
° Now comes the R command. This is a nonstandard command given by Gnu folks,  and is precisely what the doctor ordered for your scenario. It will print one line each time it is invoked and place that line after the current input line is printed.

******/피니.

Answer 1

변수에 저장하는 대신 모든 출력(한 줄에 하나씩)을 파일에 넣고 outf라고 말한 후 다음을 수행합니다.

$ sed -e "\\#${input1}#R outf" a

이는 GNU sed를 사용한다고 가정합니다. 변경 사항에 만족하면 -i 옵션을 도입하세요.

설명하다:

° Alternate delimiter needs to escaped by a backslash. In our case, # is the delimiter, so we escape it with a backslash.
° Wait a minute but I see two of them here, you'll be asking. Well coz, before what we write on the command line gets to sed is seen n processed by the shell. So since backslash is special within double quotes, we need to double it so that after shell has seen it, it shall be presented as one to sed. So the Universe is happy.
° Now comes the R command. This is a nonstandard command given by Gnu folks,  and is precisely what the doctor ordered for your scenario. It will print one line each time it is invoked and place that line after the current input line is printed.

******/피니.

n번째 패턴 일치에 대한 내부 파일 대체

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