.TH LOOKALL 1.SH NAMElookall \- look through all text files on UNIX.SH SYNOPSIS.B lookall[.BI \-C n].SH DESCRIPTION.I Lookallaccepts keywords from the standard input, performsa search similar to that of.IR  refer (1),and writes the result on the standard output..I Lookallconsults, however, an index to all the text files onthe system rather than just bibliographies.Only the first 50words of each file (roughly) were used tomake the indexes.Blank lines are taken as delimiters between queries..PPThe.BI -C noptionspecifies a coordination level search: up to.IR nkeywords may be missingfrom the answers, and the answers are listedwith those containing the most keywords first..PPThe command sequence in.I /usr/dict/lookall/makindexregenerates the index..SH FILESThe directory.I /usr/dict/lookallcontains the index files..SH DIAGNOSTICS`Warning: index precedes file ...'means that a file has been changed since the index was madeand it may be retrieved (or not retrieved) erroneously..SH BUGSCoordination level searching doesn't work as described: onlythose acceptable items with the smallest number ofmissing keywords are retreived.