test/sys_req/set_system_parameters.sh

   1 #!/bin/bash
   2
   3 file="$1"
   4
   5 usage(){
   6         echo "Usage: $0 <requirements file>"
   7 }
   8
   9 if [ "$file" == "" ]
  10 then
  11         echo "Invalid parameters specified."
  12         usage
  13         exit 1
  14 fi
  15
  16 if [ ! -f $file ]
  17 then
  18         echo "File '$file' does not exist."
  19         usage
  20         exit 1
  21 fi
  22
  23 cat $file | grep -v -e '^#.*$' | grep -v -e '^ *$' | while read line
  24 do
  25         value_file=`echo $line | awk '{print $1}'`
  26         operator=`echo $line | awk '{print $2}'`
  27         value=`echo $line | awk '{print $3}'`
  28         set_value=`echo $line | awk '{print $4}'`
  29         if [[ "$value_file" == "" || "$operator" == "" || "$value" == "" || "$set_value" == "" ]]
  30         then
  31                 echo "Syntax error in requirements file."
  32                 exit 1
  33         fi
  34         current_value=`cat $value_file`
  35         if test "$current_value" $operator "$value"
  36         then
  37                 if test "$V" = "2"
  38                 then
  39                         echo "Requirement '$value_file $operator $value' satisfied."
  40                 fi
  41         else
  42                 echo "Requirement '$value_file $operator $value' not satisfied."
  43                 echo "Writing '$set_value' to '$value_file'."
  44                 echo "$set_value" | tee "$value_file" > /dev/null
  45                 if ! test "`cat $value_file`" = "$set_value"
  46                 then
  47                         echo "Repeating the write using sudo..."
  48                         echo "$set_value" | sudo -n tee "$value_file" > /dev/null
  49                         if ! test "`cat $value_file`" = "$set_value"
  50                         then
  51                                 echo "Couldn't set the required value. Is that value allowed? Is sudo working?"
  52                                 exit 1
  53                         fi
  54                 fi
  55                 echo "Succesfully wrote '$set_value' to '$value_file'."
  56         fi
  57 done