You can use diff -w or –ignore-all-space options to ignore all white space.
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## ignore all white space echo -e " hello\n world" > myfile1 ## create some files echo -e "hello\nworld " > myfile2 diff myfile1 myfile2 ## normal output ## returns ## 1,2c1,2 ## < hello ## < world ## --- ## > hello ## > world diff -b myfile1 myfile2 ## ignore changes in the amount of white space ## returns ## 1,2c1,2 ## < hello ## < world ## --- ## > hello ## > world diff -w myfile1 myfile2 ## ignore all white space ## returns nothing as all white space ignored rm -r my* |