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Annotation of 43BSD/usr.bin/find/updatedb.csh, revision 1.1

1.1     ! root        1: #!/bin/csh -f
        !             2: #
        !             3: #      @(#)updatedb.csh        4.6     (Berkeley)      85/04/22
        !             4: #
        !             5: set SRCHPATHS = "/"                    # directories to be put in the database
        !             6: set LIBDIR = /usr/lib/find             # for subprograms
        !             7: set FINDHONCHO = root                  # for error messages
        !             8: set FCODES = /usr/lib/find/find.codes  # the database 
        !             9: 
        !            10: set path = ( $LIBDIR /usr/ucb /bin /usr/bin )
        !            11: set bigrams = /tmp/f.bigrams$$
        !            12: set filelist = /tmp/f.list$$
        !            13: set errs = /tmp/f.errs$$
        !            14: 
        !            15: # Make a file list and compute common bigrams.
        !            16: # Alphabetize '/' before any other char with 'tr'.
        !            17: # If the system is very short of sort space, 'bigram' can be made
        !            18: # smarter to accumulate common bigrams directly without sorting
        !            19: # ('awk', with its associative memory capacity, can do this in several
        !            20: # lines, but is too slow, and runs out of string space on small machines).
        !            21: 
        !            22: nice +10
        !            23: find ${SRCHPATHS} -print | tr '/' '\001' | \
        !            24:    (sort -f; echo $status > $errs) | \
        !            25:    tr '\001' '/' >$filelist
        !            26: $LIBDIR/bigram <$filelist | \
        !            27:    (sort; echo $status >> $errs) | uniq -c | sort -nr | \
        !            28:    awk '{ if (NR <= 128) print $2 }' | tr -d '\012' > $bigrams
        !            29: 
        !            30: # code the file list
        !            31: 
        !            32: if { grep -s -v 0 $errs } then
        !            33:        echo 'squeeze error: out of sort space' | mail $FINDHONCHO
        !            34: else
        !            35:        $LIBDIR/code $bigrams < $filelist > $FCODES
        !            36:        chmod 644 $FCODES
        !            37:        rm $bigrams $filelist $errs
        !            38: endif

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