const regex = / +([0-9]+ +){4}([a-z]+ [a-z]+) +(\/dev\/sd[a-z0-9]+)/g;
// Alternative syntax using RegExp constructor
// const regex = new RegExp(' +([0-9]+ +){4}([a-z]+ [a-z]+) +(\\\/dev\\\/sd[a-z0-9]+)', 'g')
const str = ` Number Major Minor RaidDevice State
0 8 1 0 active sync /dev/sda1
4 8 144 0 spare rebuilding /dev/sdj
1 8 97 1 active sync /dev/sdg1
2 8 113 2 active sync /dev/sdh1
3 8 81 3 active sync /dev/sdf1`;
// Reset `lastIndex` if this regex is defined globally
// regex.lastIndex = 0;
let m;
while ((m = regex.exec(str)) !== null) {
// This is necessary to avoid infinite loops with zero-width matches
if (m.index === regex.lastIndex) {
regex.lastIndex++;
}
// The result can be accessed through the `m`-variable.
m.forEach((match, groupIndex) => {
console.log(`Found match, group ${groupIndex}: ${match}`);
});
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions