Im still new to python.
I have a text file with a list of numbers, and each number has two 'attributes' along with it:

```
250 121 6000.654
251 8472 650.15614
252 581  84.2

```

i want to search for the 1st column and return the 2nd and 3rd columns as separate variables so i can use them later.

```
cmd = """ cat new.txt | nawk '/'251'/{print $2}' """
os.system(cmd)

```

This works in that it prints the $2 column, but i want to assign this output to a variable, something like this (however this returns the number of errors AFAIK):

```
cmdOutput =  os.system(cmd)

```

also i would like to change the nawk'd value based on a variable, something like this:

```
cmd = """ cat new.txt | nawk '/'$input'/{print $2}' """

```

If anyone can help, thanks.