regex101: PCRE (Legacy) Match Workspace

Pro

OUTthe literal text OUT (case sensitive)

\s*any whitespace character, repeated any number of times

:?optionally matches the literal : (58₁₀ / 72₈ / 3A₁₆)

Group 1([^:]+)

Negated Character Class[^:]+

+matches at least one character outside the set below:

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

Warningthe literal text Warning (case sensitive)

Negative Lookahead(?!.*?\1\s*:\s*:\s*Warning)

.*?any character, repeated any number of times

\1the text saved by group 1

\s*any whitespace character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

:the literal : (58₁₀ / 72₈ / 3A₁₆)

\s*any whitespace character, repeated any number of times

Warningthe literal text Warning (case sensitive)

Global pattern flags

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

s modifier: single line. Allows a dot to match line terminators

25 tokens

Regular Expression

OUT\s*:?([^:]+):\s*:\s*Warning(?!.*?\1\s*:\s*:\s*Warning)

New

OUT :abc123: : Warning: /var/tmp/prodperim/installer/abc123.fw is older than it should be (not updated for 36 hours)
OUT :abc123 : : Warning: /var/tmp/prodperim/installer/abc123.fw.schedule is older than it should be (not updated for 36 hours)
OUT abc1234: : Warning: / filesystem 100% full
OUT abc1234: : Warning: / filesystem 100% full
OUT abc1234: : Warning: /var/tmp/prodperim/installer/abc123.fw is older than it should be (not updated for 36 hours)
OUT bcd111: : Warning: /var/tmp/prodperim/installer/abc123.fw.schedule is older than it should be (not updated for 36 hours)
OUT bcd111: : Succeeded.

Substitution

OUT :abc123: : Warning: /var/tmp/prodperim/installer/abc123.fw is older than it should be (not updated for 36 hours)
OUT :abc123 : : Warning: /var/tmp/prodperim/installer/abc123.fw.schedule is older than it should be (not updated for 36 hours)
OUT abc1234: : Warning: / filesystem 100% full
OUT abc1234: : Warning: / filesystem 100% full
OUT abc1234: : Warning: /var/tmp/prodperim/installer/abc123.fw is older than it should be (not updated for 36 hours)
OUT bcd111: : Warning: /var/tmp/prodperim/installer/abc123.fw.schedule is older than it should be (not updated for 36 hours)
OUT bcd111: : Succeeded.