import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "^(\\S+)\\s+(\\S+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\s+(\\d+)\\%\\s+(.*)$";
final String string = "udev devtmpfs 65928068 0 65928068 0% /dev\n"
+ "tmpfs tmpfs 13190576 304608 12885968 3% /run\n"
+ "/dev/mapper/pve-root ext4 98559220 50337808 43171864 54% /\n"
+ "tmpfs tmpfs 65952876 46800 65906076 1% /dev/shm\n"
+ "tmpfs tmpfs 5120 0 5120 0% /run/lock\n"
+ "tmpfs tmpfs 65952876 0 65952876 0% /sys/fs/cgroup\n"
+ "/dev/sda2 vfat 523248 324 522924 1% /boot/efi\n"
+ "/dev/fuse fuse 30720 24 30696 1% /etc/pve\n"
+ "tmpfs tmpfs 13190572 0 13190572 0% /run/user/0\n"
+ "/dev/sdb1 ext4 960302804 6446016 905002328 1% /mnt/pve/discousb";
final String subst = "";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
// The substituted value will be contained in the result variable
final String result = matcher.replaceAll(subst);
System.out.println("Substitution result: " + result);
}
}
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 Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html