Remove whitespaces from filenames in Linux [closed]

Question

I have hundreds of jpg files in different folders like this:

• 304775 105_01.jpg
• 304775 105_03.jpg
• 304775 105_05.jpg
• 304775 105_07.jpg
• 304775 105_02.jpg
• 304775 105_04.jpg
• 304775 105_06.jpg

Basically, I need to remove the SPACES. I already know the command to change the spaces into underscores:

$ rename "s/ /_/g" * 

But I do not need the underscores in this case. I just need to remove the space. I tried the following, but it didn't work:

$ rename "s/ //g" * 

Any help would be appreciated.

Answer 1

The following would work in case it was really a space.

$ rename "s/ //g" * 

Try

$ rename "s/\s+//g" * 

\s is a whitespace character, belonging to the set of [ \t\r\n].

Answer 2

You could do something like this:

IFS="\n" for file in *.jpg; do     mv "$file" "${file//[[:space:]]}" done