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Annotation of coherent/b/STREAMS/conf/bin/cohtune, revision 1.1

1.1     ! root        1: # cohtune - change a system initializer.
        !             2: 
        !             3: CMD=$0
        !             4: ARGS=$*
        !             5: 
        !             6: CONF=${CONF-/etc/conf}
        !             7: 
        !             8: usage() {
        !             9:        echo "Usage: [CONF=conf-dir] $CMD device [ tag new-text ] ..."
        !            10:        echo "  Modify Space.c for the given device."
        !            11:        echo "  Replace the line containing tag (not in comments) by new-text."
        !            12:        echo "  Fail if there is not a unique line matching tag."
        !            13:        exit 1
        !            14: }
        !            15: 
        !            16: # tagline(file, tag) reports the line number in file which contains tag
        !            17: 
        !            18: tagline() {
        !            19: 
        !            20:        # LNO is list of matching line numbers
        !            21:        LNO=`/bin/cgrep -n $2 < $1 | /bin/sed -e "s/:.*//" \
        !            22:          -e "s/^[      ]*//"`
        !            23: 
        !            24:        # LCOUNT is number of matching line numbers
        !            25:        LCOUNT=`/bin/echo $LNO | wc -w`
        !            26: 
        !            27:        if [ $LCOUNT -ne 1 ]; then
        !            28:                echo "$CMD $ARGS:  Found $LCOUNT matches for $TAG, wanted 1."
        !            29:                exit 1
        !            30:        fi
        !            31: }
        !            32: 
        !            33: # Need at lease three args.
        !            34: if  [ $# -lt 3 ]
        !            35: then
        !            36:        usage
        !            37: fi
        !            38: 
        !            39: DEVICE=$1
        !            40: 
        !            41: SPACE_FILE=$CONF/$DEVICE/Space.c
        !            42: 
        !            43: # Need conf/device/Space.c file.
        !            44: if [ ! -f $SPACE_FILE ]
        !            45: then
        !            46:        echo "Can't find $SPACE_FILE"
        !            47:        exit 1
        !            48: fi
        !            49: 
        !            50: shift
        !            51: while [ $# -gt 1 ]
        !            52: do
        !            53:        TAG=$1
        !            54:        shift
        !            55:        tagline $SPACE_FILE $TAG
        !            56:        NEW_TEXT=$1
        !            57:        shift
        !            58: 
        !            59: # Do replacement.
        !            60: 
        !            61: /bin/ed - +v $SPACE_FILE <<_EOF
        !            62: $LNO
        !            63: c
        !            64: $NEW_TEXT
        !            65: .
        !            66: p
        !            67: wq
        !            68: _EOF
        !            69: 
        !            70: done

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