Dynamic Variable Based on Count


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Dynamic Variable Based on Count
# 1  
Old 01-27-2009
Dynamic Variable Based on Count

I'm trying to assign variables that include the current value of a count, but I can't seem to get it working... this script is incomplete, but some guidance on how to use a dynamic variable would be helpful:

Sample Input:
Code:
bash-2.03$ more sg2.txt
Results for group6
443
1394

Results for group7
15191-15199
15240
15130-15133
15257
15231
15147-15159

Results for group8
15255
15257

Results for group9
104-104 (udp)
104

Results for group10
2380-2381
2370-2371

Like I said, this is incomplete and there may be more efficient ways of doing this, but I need help with the denoted portion:
Code:
#!/bin/bash
COUNT=1
ENHANCE=0
while read line
do

case "$line" in

Results*) NAME=`echo "$line" | cut -d " " -f 3` ;;
[0-9]*udp*) PORTa=`echo "$line" | cut -d "-" -f 1`; PORTb=`echo "$line" | cut -d "-" -f 2 | cut -d " " -f 1`
            if [ $PORTa = $PORTb ]; then
            PORT$COUNT="service-object udp $PORTa"
            else
            PORT$COUNT="service-object udp range $PORTa $PORTb"
            fi
            COUNT=`expr $COUNT + 1`
            ENHANCE=1 ;;
ping) PORT$COUNT="echo "service-object icmp""
      COUNT=`expr $COUNT + 1`
      ENHANCE=1 ;;
[0-9]*) case "$line" in
         [0-9]*-[0-9]*) PORTa=`echo "$line" | cut -d "-" -f 1`; PORTb=`echo "$line" | cut -d "-" -f 2 | cut -d " " -f 1` ;
                       PORT$COUNT="service-object tcp range $PORTa $PORTb" ;
                       COUNT=`expr $COUNT + 1` ;;
         [0-9]*) "echo "service-object tcp $line""
                COUNT=`expr $COUNT + 1` ;;
        esac;;
*) if [ $ENHANCE -eq 0 ]; then
     echo "object-group service $NAME tcp"
     PORTCOUNT=1
     while [ $PORTCOUNT -lt $COUNT ]
     do
     echo "$(PORT$PORTCOUNT)"
     PORTCOUNT=`expr $PORTCOUNT + 1`
    done
        else
     PORTCOUNT=1
     while [ $PORTCOUNT -lt $COUNT ]; do
     echo "$PORT$PORTCOUNT"
     PORTCOUNT=`expr $PORTCOUNT + 1`
     done
   fi
esac
done < sg2.txt

# 2  
Old 01-27-2009
try this:

eval PORT$COUNT="service-object udp $PORTa"

Last edited by quirkasaurus; 01-27-2009 at 01:59 PM.. Reason: oopsy -- don't need that first backslash and dollar
# 3  
Old 01-27-2009
Anyways -- it looks like you're tying to get a variable labelled PORT1, or PORT2....

but later you're referencing a variable just called PORTCOUNT...
# 4  
Old 01-27-2009
Quote:
Originally Posted by quirkasaurus
Anyways -- it looks like you're tying to get a variable labelled PORT1, or PORT2....

but later you're referencing a variable just called PORTCOUNT...
I see how it is a bit confusing to use PORTCOUNT as a variable when earlier I tried to use PORT$COUNT, but what I was trying to accomplish was to list each PORT$COUNT (PORT1 PORT2 PORT3, etc) all the way up to whatevere $COUNT ended at, which is a dynamic number each time through the loop.

So, until $PORTCOUNT = $COUNT

I'll give the eval a shot.
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Count dynamic words in file

Hello, i want built a log analyzer for nginx. Okay and i use it as training for the shell tools. The most what i want i could relize. But i has trouble with dynamic things. I have the IP address extracted and has set the geo localtion for the ip. I would like to count the countries. With... (3 Replies)
Discussion started by: sisihagen
3 Replies

2. Shell Programming and Scripting

Passing dynamic variable within another variable.

I have a small program which needs to pass variable dynamically to form the name of a second variable whose value wil be passed on to a third variable. ***************** Program Start ****************** LOC1=/loc1 PAT1IN=/loc2 PAT2IN=/loc3 if ; then for fpattern in `cat... (5 Replies)
Discussion started by: Cyril Jos
5 Replies

3. Shell Programming and Scripting

Dynamic case creation based on output list from a command

I am attempting to create a script that would allow me to list all the instances associated with a DB2 and then prompt the user to choose which one to issue the db2profile command against. I use the db2 command db2ilist to get a list of the instances for a particular server, but the number of... (7 Replies)
Discussion started by: slatoms
7 Replies

4. Red Hat

Dynamic case creation based on output list from a command

I am attempting to create a script that would allow me to list all the instances associated with a DB2 and then prompt the user to choose which one to issue the db2profile command against. I use the db2 command db2ilist to get a list of the instances for a particular server, but the number of... (1 Reply)
Discussion started by: slatoms
1 Replies

5. Shell Programming and Scripting

Help Dynamic looping based on files

Hi I have to run the script (a part of the code) in a loop for the no of times the files present in the directory, by taking one file and process and next another file. For example, if we do ls and the result have: $ls abc.dat def.dat ghi.dat The script code should loop for 3... (4 Replies)
Discussion started by: karumudi7
4 Replies

6. UNIX for Dummies Questions & Answers

How to set a variable with a count variable i.e. VARIABLE$COUNT

Hi All I've very nearly finished this script I'm working on but have hit another idiots problem, after googling I can't see a solution for this one. I have a while count loop that checks checks two consecutive values then increments the count by two. What the script has to do is then check... (5 Replies)
Discussion started by: Bashingaway
5 Replies

7. Shell Programming and Scripting

Dynamic SQL query based on shell script parameters

Hi, I need a script that will run a dynamic Oracle SQL. Dynamic meaning the SQL statement depends on the parameter. For instance, something like this: #!/bin/ksh -x # Set environment . /home/mine/set_vars sqlplus $LOGINID <<! >> /home/mine/log.txt select count(1) from $1 where... (2 Replies)
Discussion started by: laiko
2 Replies

8. Shell Programming and Scripting

Dynamic naming based on file content

I was just thinking if there is a way where i can dynamically rename files based on the actual file content. I have a load of pdf's which have been named wrongly. (We normally put date first, then brief description, then title) So can a script be written wherin, it pulls out the date and title... (2 Replies)
Discussion started by: deaddevil
2 Replies
Login or Register to Ask a Question