Famous Sed One-Liners Explained, Part I: File Spacing, Numbering and Text Conversion and Substitution

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February 13, 2009, 12:34

In #31, if the pattern (foo) comes more than two times in the line then it replaces the second last one. As an example

echo "this is first foo, this is second foo another foo quux" | sed 's/\(.*\)foo\(.*foo\)/\1bar\2/'

then output will be:
this is first foo, this is second bar another foo quux

Which doesn't fulfill our requirements.

Regards,
Yogesh

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