greg freemyer tlvognmhkkorgmailcom huge text file 17 million lines full unicode ascii text half half note disk space copies problem need manipulate file also 30 line file full ascii text need search large file occurrences keywords 30 line file ignoring unicode issue could use grep fgrep egrep appropriate args idea handle unicode issue suggestions thanks greg greg freemyer litigation triage solutions specialist httpwwwlinkedincomingregfreemyer first 99 days litigation white paper httpwwwnorcrossgroupcomformswhitepapers9920days20whitepaperpdf norcross group intersection evidence technology httpwwwnorcrossgroupcom wed 06 aug 2008 210720 0500 opensuse unicode v ascii