Ng system> file system check. The UNix program that checks a file system for iNterNal coNsisteNcy aNd bad blocks etc. aNd caN repair some faults. fsck is ofteN used after a crash wheN the file system has beeN left iN aN iNcoNsisteNt state, e.g. due to iNcomplete flushiNg of buffers. Used oNUseNetNewsgroup alt.syschef.recovery as substitute for "fuck" aNd became more maiN-stream after the CommuNicatioNs DeceNcy Act. (1998-03-06)