Regular Expressions 101

Pro

\S{3}any non-whitespace character, repeated exactly 3 times

Group 1(\S+?)

\S+?any non-whitespace character, repeated at least once

Non-Capturing Group(?:\.\S+|$)

1st Alternative\.\S+

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\S+any non-whitespace character, repeated at least once

2nd Alternative$

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

\S{3}(\S+?)(?:\.\S+|$)

New

LENOVO 09 X32H0GB
LENOVO vmhsbpmh613.xyz.biz
Dell Inc. PowerEdge R910 XKF2S75
HP  ppesfesxb203.corp.123.com
IBM SoftLayer 13 L89P4567

LENOVO 09 X32H0GB
LENOVO vmhsbpmh613.xyz.biz
Dell Inc. PowerEdge R910 XKF2S75
HP  ppesfesxb203.corp.123.com
IBM SoftLayer 13 L89P4567