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D.12. /etc/rc.d/init.d/cleanfs

#!/bin/sh
########################################################################
# Begin $rc_base/init.d/cleanfs
#
# Description : Clean file system
#
# Authors     : Gerard Beekmans - gerard@linuxfromscratch.org
#
# Version     : 00.00
#
# Notes       :
#
########################################################################

. /etc/sysconfig/rc
. ${rc_functions}

# Function to create files/directory on boot.
create_files() {
    # Read in the configuration file.
    exec 9>&0 < /etc/sysconfig/createfiles
        while read name type perm usr grp dtype maj min junk
        do

            # Ignore comments and blank lines.
                   case "${name}" in
                ""|\#*) continue ;;
            esac

            # Ignore existing files.
            if [ ! -e "${name}" ]; then
                # Create stuff based on its type.
                case "${type}" in
                    dir)
                        mkdir "${name}"
                        ;;
                    file)
                        :> "${name}"
                        ;;
                    dev)
                        case "${dtype}" in
                            char)
                                mknod "${name}" c ${maj} ${min}
                                ;;
                            block)
                                mknod "${name}" b ${maj} ${min}
                                ;;
                            pipe)
                                mknod "${name}" p
                                ;;
                            *) 
                                boot_mesg -n "\nUnknown device type: ${dtype}" ${WARNING}
                                boot_mesg "" ${NORMAL}
                                ;;
                        esac
                        ;;
                    *)
                        boot_mesg -n "\nUnknown type: ${type}" ${WARNING}
                        boot_mesg "" ${NORMAL}
                        continue
                        ;;
                esac

                # Set up the permissions, too.
                chown ${usr}:${grp} "${name}"
                chmod ${perm} "${name}"
            fi
        done
    exec 0>&9 9>&-
}

case "${1}" in
    start)
        boot_mesg -n "Cleaning file systems:" ${INFO}

        boot_mesg -n " /tmp" ${NORMAL}
        cd /tmp &&
        find . -xdev -mindepth 1 ! -name lost+found \
            -delete || failed=1

        boot_mesg -n " /var/lock" ${NORMAL}
        cd /var/lock &&
        find . -type f -exec rm -f {} \; || failed=1

        boot_mesg " /var/run" ${NORMAL}
        cd /var/run &&
        find . ! -type d ! -name utmp \
            -exec rm -f {} \; || failed=1
        > /var/run/utmp
        if grep -q '^utmp:' /etc/group ; then
            chmod 664 /var/run/utmp
            chgrp utmp /var/run/utmp
        fi

        (exit ${failed})
        evaluate_retval

        if egrep -qv '^(#|$)' /etc/sysconfig/createfiles 2>/dev/null; then
            boot_mesg "Creating files and directories..."
            create_files
            evaluate_retval
        fi
        ;;
    *)
        echo "Usage: ${0} {start}"
        exit 1
        ;;
esac

# End $rc_base/init.d/cleanfs

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