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line-replace
Advanced tools
Replace a line in a file with passed string.
Global, for command line usage:
npm install -g line-replace
Local, for programatic usage in your project:
npm install --save line-replace
USAGE:
line-replace [file]:[line] [[string]]
EXAMPLE:
line-replace sample.txt:7 'New content for line seven.'
Passed string will replace passed line number on passed file.
If string is not provided, the line will be cleared.
const lineReplace = require('line-replace')
lineReplace({
file: 'a-file.txt',
line: 42,
text: 'Answer to the Ultimate Question of Life, the Universe, and Everything.',
addNewLine: true,
onReplace
})
function onReplace({file, line, text, replacedText}) {
}
addNewLine
defaults to true
, which doesn't add or remove
lines from the original document.
Setting it to false
is the equivalent of removing the passed line and appending
the passed text to the next line.
For example, with the following content:
First line.
Second line.
Third line.
Running:
lineReplace({
file: 'the-file.txt',
line: 2,
text: 'LOOK: ',
addNewLine: false,
onReplace
})
Will result in:
First line.
LOOK: Third line.
Yeah. line-replace
uses read and write streams, so it should work ok with big files.
Enjoy!
FAQs
Replace a line in a file with passed string.
The npm package line-replace receives a total of 6,613 weekly downloads. As such, line-replace popularity was classified as popular.
We found that line-replace demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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