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updatedb
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1990-01-22
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#!/bin/csh -f
#
# @(#)updatedb.csh 1.3 88/05/08 4.0NFSSRC SMI; from UCB 4.6 85/04/22
# @(#) from SUN 1.4
#
#
set SRCHPATHS = "/" # directories to be put in the database
set LIBDIR = /usr/lib/find # for subprograms
set FINDHONCHO = root # for error messages
set FCODES = /etc/find.codes # the database
set path = ( $LIBDIR /usr/ucb /bin /usr/bin )
set bigrams = /tmp/f.bigrams$$
set filelist = /tmp/f.list$$
set errs = /tmp/f.errs$$
# Make a file list and compute common bigrams.
# Alphabetize '/' before any other char with 'tr'.
# If the system is very short of sort space, 'bigram' can be made
# smarter to accumulate common bigrams directly without sorting
# ('awk', with its associative memory capacity, can do this in several
# lines, but is too slow, and runs out of string space on small machines).
nice +10
find ${SRCHPATHS} -fstype nfs -prune -o -print | tr '/' '\001' | \
(sort -f; echo $status > $errs) | \
tr '\001' '/' >$filelist
$LIBDIR/bigram <$filelist | \
(sort; echo $status >> $errs) | uniq -c | sort -nr | \
awk '{ if (NR <= 128) print $2 }' | tr -d '\012' > $bigrams
# code the file list
if { grep -s -v 0 $errs } then
echo 'squeeze error: out of sort space' | mail $FINDHONCHO
else
$LIBDIR/code $bigrams < $filelist > $FCODES
chmod 644 $FCODES
rm $bigrams $filelist $errs
endif