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Case loop condition

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# 8  
Old 03-12-2013
If you look at this block of code:

Code:
    if ! g1 $1 $2 $3 $4
    then
         echo "Errors found in date/time - exiting now" >&2
         exit 1
    fi

$1 is file
$2 - $4 are blank

I assume you want to process contents of file $1 something like this:

Code:
grep -v '^#' "$1" | while read hour log min date rest
do
  if ! g1 $date $hour $min
  then
         echo "Errors found in date/time - exiting now" >&2
         exit 1
  f1
done

Last edited by Chubler_XL; 03-12-2013 at 08:14 PM..
# 9  
Old 03-13-2013
Quote:
Originally Posted by Chubler_XL
If you look at this block of code:

Code:
    if ! g1 $1 $2 $3 $4
    then
         echo "Errors found in date/time - exiting now" >&2
         exit 1
    fi

$1 is file
$2 - $4 are blank

I assume you want to process contents of file $1 something like this:

Code:
grep -v '^#' "$1" | while read hour log min date rest
do
  if ! g1 $date $hour $min
  then
         echo "Errors found in date/time - exiting now" >&2
         exit 1
  f1
done

Hello,

Can you explain what "if ! g1 $date $hour $min" do exactly.
For me it means if the function doesn't return something then send this message "Errors found in date/time - exiting now". Is it right ?
# 10  
Old 03-14-2013
Hello,

Can you help me ? Whatever i want, if there is a bad parameter, the function f1 should not work.
I tried everything according to my poor skills.

Here my inputfile
Code:
cat file
2013-03-31 09 31

With
Code:
[ "$EC" = 1 ]

and right parameters
Code:
./my_script file
Errors found in date/time - exiting now

With
Code:
[ "$EC" = 0 ]

and right parameters
Code:
./my_script file
2013-03-31 09 31

With
Code:
[ "$EC" = 1 ]

and bad parameters
Code:
./my_script file
Errors found in date/time - exiting now

With
Code:
[ "$EC" = 0 ]

and bad parameter
Code:
./my_script file
2013-03-31 09 32

Code:
./my_script file
Errors found in date/time - exiting now

Another weird thing
When the file has 2 lines with [ "$EC" = 0 ] and bad parameter or right parameter there are 4 lines
.
Code:
/my_script file
2013-03-31 09 31
2013-03-31 09 23
2013-03-31 09 31
2013-03-31 09 23

When the file has 3 lines with [ "$EC" = 0 ] and bad parameter or right parameter there 8 lines
Code:
my_scrip file
2013-03-31 09 31
2013-03-31 09 23
2013-03-31 09 18
2013-03-31 09 31
2013-03-31 09 23
2013-03-31 09 18
2013-03-31 09 31
2013-03-31 09 23
2013-03-31 09 18

And so on with 4 lines the print returns 16 lines.

Here the script
Code:
#!/bin/sh
#########################################################################
DATE=$1
HOUR=$2
MN=$3
function g1 () {
  EC=0
  case "$1" in

    ([1-9][0-9][0-9][0-9]-0[1-9]-0[1-9] | [1-9][0-9][0-9][0-9]-0[1-9]-1[0-9] | [1-9][0-9][0-9][0-9]-0[1-9]-2[0-9] | [1-9][0-9][0-9][0-9]-0[1-9]-3[0-1] | [1-9][0-9][0-9][0-9]-1[0-2]-0[1-9] | [1-9][0-9][0-9][0-9]-1[0-2]-1[0-9] | [1-9][0-9][0-9][0-9]-1[0-2]-2[0-9] | [1-9][0-9][0-9][0-9]-1[0-2]-3[0-1])
# nothing, OK !
    ;;
    (*)
      echo 'Fatal, $1 = '"'$1'"', Date not conform OR absent' >&2
      EC=1
    ;;
  esac

   case "$2" in
     ([01][0-9] | 2[0-3])
        # nothing, OK !
    ;;
    (*)
      echo 'Fatal, $2 = '"'$2'"', Hour in 2 digits between 00 and 23' >&2
      EC=1
    ;;
   esac

   case "$3" in

    ([01][0-9] | [2-5][0-9])
      # nothing, OK !
     ;;
    (*)
      echo 'Fatal, $3 = '"'$3'"', Minute in two digits between 00 and 59' >&2
      EC=1
    ;;
   esac
   #[ "$EC" = 1 ] && exit $EC
   #[ "$EC" = 1 ]
   [ "$EC" = 1 ]
}


f1() {
#echo -e "$DATE $HOUR $MIN"
echo -e "$1 $2 $3"
}
case $# in
        0)      echo -e "# comment1\n# comment2" > list_file
                read -p "Please fill in this list_file: "

                echo $REPLY
                ;;
        1)     if [ ! -f "$1" ]
               then  > $1 && echo -e "# comment1\n# comment1" > $1
                        read -p "Please fill in "$1": "

                        echo $REPLY
               else
                        if [ -f "$1" -a $(grep -v '^#' "$1" | wc -l ) -ne 0 ]
                        then
                                grep -v '^#' "$1" |
                                while read arg1 arg2 arg3
                                do
                                if ! g1 $arg1 $arg2 $arg3
                                then
                                        echo "Errors found in date/time - exiting now" >&2
                                        exit 1
                                else

                                         grep -v '^#' "$1" |
                                                while read arg1 arg2 arg3
                                                do f1 $arg1 $arg2 $arg3
                                                done
                                 fi
                                done
                        else
                                read -p "Please fill in "$1": "
                                echo $REPLY
                        fi
                fi
               ;;

        3)      echo -e "# Fill in the 3 variables below\n# DATE HOUR MN" > $1
                echo $2 $3 $4 >> "$1"                  # concatenation of variables in $ 1
                                grep -v '^#' "$1" | # Omits the comments
                                while read arg1 arg2 arg3 # Parse the parameters
                                do f1 $arg1 $arg2 $arg3 # Processing parameters for the function f1
                                done
                ;;
 *)      echo "error msg"; exit
esac
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