Skip site navigation (1)Skip section navigation (2) 
Date:      Thu, 25 Jul 2002 09:55:35 -0700
From:      Michelle Weeks <tristan11@mindspring.com>
To:        freebsd-questions@freebsd.org
Subject:   Re: Backup Scripts
Message-ID:  <5703127A-9FEF-11D6-A5A4-00039368B8EC@mindspring.com>
index | next in thread | raw e-mail 

[-- Attachment #1 --]
The below script that I was having problems with is working for me now 
thanks to Steve's suggestion; however when I changed the script to do a 
Level 1 tar archive, I get the following output after tar_verify:

Level-1 Backup END
Level-1 Backup Verify Wed Jul 24 15:38:47 PDT 2002
tar: echo not found in archive
tar: Level-1 Backup Verify END not found in archive

I did a tar tv of the tape and saw that the backup was completed, but am 
not sure why I get the above message.  Also after running the script, 2 
files are created on the tape.  One of which contains the backup archive 
and the other which is empty - at least var t doesn't print anything 
out.  Shouldn't the tar command just create one file?


Here is the script I am using:


#! /bin/sh
# Variables
EMAILTO=backup
DESTFILE=/dev/nrsa0
BACKUPFILES="/var /usr/home"
BACKUPDIR=${HOME}/backup
LEVEL=1

# Load backup functions
cd ${BACKUPDIR}
. backup-functions

# Do the backup
tar_backup

# Test the backup for errors
tar_verify

# Email the backup report
mail_report

# Done
exit

and here is the .backup-functions file for the shell script:

# Variables
L0DATESTAMP="${BACKUPDIR}/.level0_datestamp"
NOW=`date`

# tar_backup function: does the archiving
tar_backup ()
{
   echo "Level-${LEVEL} Backup ${NOW}"
   if [ "${LEVEL}" = "0" ]; then
     # make Level-0 datestamp
     echo ${NOW} > ${L0DATESTAMP}
     # Level-0 backup
     tar --create --verbose \
         --file ${DESTFILE} \
         --label "Level-${LEVEL} Backup ${NOW}" \
         ${BACKUPFILES}
   elif [ "${LEVEL}" = "1" ]; then
     # get last Level-0 datestamp
     LAST=`cat ${L0DATESTAMP}`
     # Level-1 backup
     tar --create --verbose \
         --file ${DESTFILE} \
         --after-date "${LAST}" \
         --label "Level-${LEVEL} Backup from ${LAST} to ${NOW}" \
         ${BACKUPFILES}
   else
     # Backup level error
     echo "Error: Level-${LEVEL} unknown"
     exit
   fi
   echo "Level-${LEVEL} Backup END"
}

# tar_verify function: test the archive for errors
tar_verify ()
{
   echo "Level-${LEVEL} Backup Verify ${NOW}"
   # Backup verify test
   tar --list --verbose \
       --file ${DESTFILE} \
   echo "Level-${LEVEL} Backup Verify END"
}

# mail_report function: sends backup report
mail_report ()
{
   # Email backup report
   mail -s "Level-${LEVEL} Backup" "${EMAILTO}" << EOF

###########################################################
Level-${LEVEL} Backup
###########################################################

Host:  ${HOSTNAME}
Files: ${BACKUPFILES}

Destination: ${DESTFILE}

###########################################################
Started:   ${NOW}
Completed: `date`
###########################################################

EOF
}




[-- Attachment #2 --]
The below script that I was having problems with is working for me now
thanks to Steve's suggestion; however when I changed the script to do
a Level 1 tar archive, I get the following output after tar_verify:


Level-1 Backup END

Level-1 Backup Verify Wed Jul 24 15:38:47 PDT 2002

tar: echo not found in archive

tar: Level-1 Backup Verify END not found in archive


I did a tar tv of the tape and saw that the backup was completed, but
am not sure why I get the above message.  Also after running the
script, 2 files are created on the tape.  One of which contains the
backup archive and the other which is empty - at least var t doesn't
print anything out.  Shouldn't the tar command just create one file?



<color><param>5454,0000,0000</param>Here is the script I am using:



#! /bin/sh

# Variables

EMAILTO=backup

DESTFILE=/dev/nrsa0

BACKUPFILES="/var /usr/home"

BACKUPDIR=${HOME}/backup

LEVEL=1


# Load backup functions

cd ${BACKUPDIR}

. backup-functions


# Do the backup

tar_backup


# Test the backup for errors

tar_verify


# Email the backup report

mail_report


# Done

exit


and here is the .backup-functions file for the shell script:


# Variables

L0DATESTAMP="${BACKUPDIR}/.level0_datestamp"

NOW=`date`


# tar_backup function: does the archiving

tar_backup ()

{

  echo "Level-${LEVEL} Backup ${NOW}"

  if [ "${LEVEL}" = "0" ]; then

    # make Level-0 datestamp

    echo ${NOW} > ${L0DATESTAMP}

    # Level-0 backup

    tar --create --verbose \

        --file ${DESTFILE} \

        --label "Level-${LEVEL} Backup ${NOW}" \

        ${BACKUPFILES}

  elif [ "${LEVEL}" = "1" ]; then

    # get last Level-0 datestamp

    LAST=`cat ${L0DATESTAMP}`

    # Level-1 backup

    tar --create --verbose \

        --file ${DESTFILE} \

        --after-date "${LAST}" \

        --label "Level-${LEVEL} Backup from ${LAST} to ${NOW}" \

        ${BACKUPFILES}

  else

    # Backup level error

    echo "Error: Level-${LEVEL} unknown"

    exit

  fi

  echo "Level-${LEVEL} Backup END"

}


# tar_verify function: test the archive for errors

tar_verify ()

{

  echo "Level-${LEVEL} Backup Verify ${NOW}"

  # Backup verify test

  tar --list --verbose \

      --file ${DESTFILE} \

  echo "Level-${LEVEL} Backup Verify END"

}


# mail_report function: sends backup report

mail_report ()

{

  # Email backup report

  mail -s "Level-${LEVEL} Backup" "${EMAILTO}" <<<< EOF


###########################################################

Level-${LEVEL} Backup

###########################################################


Host:  ${HOSTNAME}

Files: ${BACKUPFILES}


Destination: ${DESTFILE}


###########################################################

Started:   ${NOW}

Completed: `date`

###########################################################


EOF

}



</color>
help

Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?5703127A-9FEF-11D6-A5A4-00039368B8EC>