Shell Programming and Scripting

func()
{
cd ${dir}
`find . -mtime +90 -type f -name "*.txt" | xargs -r tar -rzvf filename.tar.gz`
`mv -f filename.tar.gz $archive`
status_check=`echo $?`
if [ $status_check -ne 0 ]; then
  echo "Archiving Unsuccessful"
else
  echo "Archiving Successful"
  `find . -mtime +90 -type f -name "*.txt" | xargs -exec rm -f {} \;`
fi
}

func()
{
cd ${dir}
`find . -mtime +90 -type f -name "*.txt" | xargs -r tar -rzvf filename.tar.gz`
`mv -f filename.tar.gz $archive`
status_check=`echo $?`
if [ $status_check -ne 0 ]; then
  echo "Archiving Unsuccessful"
else
  echo "Archiving Successful"
  `find . -mtime +90 -type f -name "*.txt" | xargs -exec rm -f {} \;`
fi
}

mv: cannot stat `filename.tar.gz': No such file or directory

func()
{
        cd ${dir}
        if ! find . -mtime +90 -type f -name "*.txt" | xargs -r tar -rvf filename.tar
        then
                echo "Couldn't archive" >&2
                return 1
        fi

        [ -f "filename.tar" ] || return 1
        gzip "filename.tar" || return 1
        if ! mv -f filename.tar.gz $archive
        then
                echo "Moving Unsuccessful"
                return 1
        fi

        find . -mtime +90 -type f -name "*.txt" -exec rm '{}' ';'
}

if ! find . -mtime +90 -type f -name "*.txt" | xargs -r tar -rvf filename.tar

if ! find . -mtime +90 -type f -name "*.txt" | xargs -r tar -rvf --remove-files filename.tar