Shell Programming and Scripting

#!/bin/bash

cnt=0
while true
do
read -r fplan
if [[ -f "$fplan" || -f ../"$fplan" ]]
then
echo "File exists"
break
else
echo "Try again"
fi

((cnt+=1))
if [[ $cnt -eq 5 ]]
then
echo "exceeded 5 tries. quitting"
exit
fi
done
echo
echo "Please wait while the task completes"


sleep 5                                           

while read -r LINE
do                                                              
    if [[ "${LINE}" =~ "SystemDeclarationData" ]]               #  find the string SystemDeclarationData
    then
    echo "$LINE"
        read -r LINE  
        if [[ ${LINE} == 21* ]]                                 #  find the string that matches 21*.  If the matching string is the 
    then                                                    #+ very next line after SystemDeclarationData then insert the generic url
        echo "$LINE"                                    #+ on the 22nd line from the second matched pattern.  Repeat this for 1        
            sed '22 i\http:\/\/generic_url\g'                   #+ million plus lines.
    else echo "$LINE"
        fi
    else echo "$LINE"
    fi
done < "$fplan" > $PWD/complete                                                       
        



sleep 5
echo
echo
echo  "backing up original fplan"

cp "$fplan" "$fplan".bak

sleep 5
echo
echo "renaming the changed file to work with jcats"

mv $PWD/complete "$fplan"

sleep 3
echo
echo "operation completed"
echo
echo

Type: OTHGoldUnitInfo;0
UNK

UNK

SEC

UNK

end;

8
Type: SystemDeclarationData;7
216120





U0010002372

DETAINEE MALE

















1
1
2385
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216063





U0010002373

DETAINEE MALE

















1
1
2386
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216061





U0010002374

DETAINEE MALE

















1
1
2387
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216060





U0010002375

DETAINEE MALE

















1
1
2388
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216059





U0010002376

DETAINEE MALE

















1
1
2389
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216058





U0010002377

DETAINEE MALE

















1
1
2390
-1
0
0
0
0
0
Type: SupplyLoad;4
0
0
end;

end;

Type: SystemDeclarationData;7
216057





U0010002378

DETAINEE MALE

















1
1
2391
-1
0
0
0
0
0

sed '22 i\http:\/\/generic_url\g'

echo 'http://generic_url'