both sides execution of command

Shell Programming and Scripting
1

Hi,

i am struggling with a chunk of code.

    for ((i=1; i<=3; i++));do
        one-$i ="/tmp/one.$RANDOM"
    done

How to execute the above code.
In both sides(LHS and RHS), i am executing commands.
it is not allowing to execute.

can you please give the idea.

It should be very appreciable, if i get an example.

Thanks.

2

what are you exactly trying here ?

Please help us with some explanation.

3

I like to get the output as
one-1="/tmp/one.22345"
one-2="/tmp/one.22346"

I mean to say like, I want to intialize two variables, one-1 one-2 with respective values.

4

one-$i ="/tmp/one.$RANDOM" Won't work

  1. use eval
  2. no space around '='
eval "one-$i=/tmp/one.$RANDOM"
5 
sh-3.00# for ((i=1; i<=3; i++));do echo $(eval "one-$i=one.$RANDOM"); done
sh: one-1=one.13352: command not found

sh: one-2=one.14261: command not found

sh: one-3=one.15170: command not found

sh-3.00#

it is saying like command not found..
but it is not command

6 
$ for ((i=1; i<=3; i++));do eval "one_$i=one.$RANDOM" ; done
$ echo $one_1
one.21586
$ echo $one_2
one.22755
$ echo $one_3
one.17778

This worked for me. can you try this.

---------- Post updated at 04:05 PM ---------- Previous update was at 04:02 PM ----------

I just changed the '-' to '_', it is not interpreting the latter as a command. Not sure why.

I think bash variables shouldn't contain special chars other than '_'.

Because it neither worked with '.'

7

Right. I should have seen that !

8

for ((i=1; i<=3; i++));do eval "one-$i=one.$RANDOM" ; done

"-" requirement is there.
So, any other solution to execute this commad

9

'-' can not be in a variable name. Please, tell us what you want to do with it, maybe there's a turnaround.