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Josselin
Asked: 2018-08-07 06:38:27 +0800 CST

How can l display files from 1 to 17 and from 3605 to 3610 using ls?

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l would like to display files of the following format : 

train_example_X.py

such that X varies from 1 to 9000.

What l have tried ?

ls train_example_[1-17].py

returns only train_example_1.py and train_example_7.py however l'm supposed to get all the files from 1 to 17.

and for : 

ls train_example_[3605-3610].py

it returns train_example_1.py and train_example_3.py

What is wrong with my command ?

command-line files ls

1 Answers

  1. Well, you're using [...] there, which is pathname expansion and that supports only ASCII ranges of 0-9 so you'd have to get creative with it or use extended globbing

    Simpler (imho) approach would be to use brace expansion,

    ls train_example_{1..17}.py train_example{3605..3610}.py
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