bash loop through files that have no extension

Question

I want to loop through files that matches a pattern:

for item in ./bob* ; do
    echo $item
done

I have a file list like:

bob
bobob
bobob.log

I only want to list files that have no extension:

bob
bobob

what is the best way to archive this? - can I do it in the loop somehow or do I need an if statement within the loop?

score 2 · Accepted Answer · edited Jun 08 '20 at 11:37

2

In bash you can use features of xtended globbing:

shopt -s extglob

for item in ./bob!(*.*) ; do
    echo $item
done

You can put shopt -s extglob in your .bashrc file to enable it.

edited Jun 08 '20 at 11:37

Gilles Quenot

answered Jun 08 '20 at 11:08

lurker

1

thanks works nicely - also the other answer does too, I accepted this one somewhat arbitrarily in that I prefer the syntax, but both are good – code_fodder Jun 08 '20 at 12:31

score 1 · Answer 2 · answered Jun 08 '20 at 11:46

1

Recent Bash versions have regular expression support:

for f in *
do
  if [[ "$f" =~ .*\..*  ]]
  then
    : ignore
  else
    echo "$f"
  fi
done

answered Jun 08 '20 at 11:46

ceving

thanks works nicely - also the other answer does too, I cant determine which the "accepted answer". So I am just accepting the answer that I used only because it has less (by about 1!?) and is slightly easier to read. – code_fodder Jun 08 '20 at 12:30

2 Answers2