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linuxbashls

'ls' command in Bash - Matching numericals

I have a directory with the following files: 

root.o
root.type1
root.type2
root.type1.c
root.type2.c
root.type1.c.pa0
root.type2.c.pa0
root.type2.c.pa1
root.type2.c.pa2
root.type2.c.pa3
....
root.type2.c.pa100
root.type2.c.pa0.out
root.type2.c.pa1.out
root.type2.c.pa2.out
root.type2.c.pa3.out
...
root.type2.c.pa100.out

I would like to list the files that begin with root.type2.c.pa. and end with numbers, excluding the files ending with .out. In other words, I want to list this chunk : 

root.type2.c.pa0
root.type2.c.pa1
root.type2.c.pa2
root.type2.c.pa3
....
root.type2.c.pa100

Writing ls root.type2.c.pa?, ls root.type2.c.pa??, and ls root.type2.c.pa??? would do the job.

Is their a simple way to list the chunk without knowing how many numbers there are at the end of the desired files ? In the example above, we have at most 3 numbers. In practice, I may have 1, 2, 3, 4, or 5 numbers.

Solution 
  • shopt -s extglob
ls root.type2.c.pa+([0-9])