Regular Expressions 101

Character Class[A-Z]{3}

{3}matches exactly 3 characters from the set below:

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Positive Lookahead(?=\.)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Global pattern flags

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

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

[A-Z]{3}(?=\.)

New

/path/to/QAQC/Conclusions_Pakistan_2019-09-13_PAK.pdf
/path/to/QAQC/Conclusions_SouthAfrica_2019-09-13_ZAF.pdf
/path/to/QAQC/Conclusions_TheBahamas_2019-09-13_BHS.pdf
/path/to/QAQC/Conclusions_Venezuela_2019-09-13_VEN.pdf
/path/to/QAQC/Conclusions_Pakistan_2019-09-13_YEM.pdf
/path/to/QAQC/Conclusions_Iraq_2019-09-13_IRQ.pdf
/path/to/QAQC/Conclusions_Afghanistan_2019-09-13_AFG.pdf

Regular Expression

Substitution