sed: how to delete BOTH leading and trailing whitespace from each line

30 Jun 2008 5:10 (Edited: 30 Jun 2008 5:10)

Some environments or programs don't like whitespace. If you have Linux/Unix environment, you can use sed to remove BOTH leading and trailing whitespace from each line of the file.

sed -e 's/^[ \t]*//;s/[ \t]*$//' input_file > output_file

just replace input_file and output_file with the filenames you use.

DON'T try to use same input_file and output_file filename!

Tags: leading  remove  sed  trailing  whitespace 

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