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I want to replace . with / in a Unix shell script:

2015.07.25 to 2015/07/25

How can I do this?

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    we need more context. Do you mean inside of a text file (or other kind of file, then specify) OR do you mean in the output of a string echo "2015.07.25". OR once your value is assigned to a variable, i.e. myDate="2015.07.25". Please take 15 mins to read what you can when searching for [unix] date reformat, sorted by highest votes, and then update your question to make something answerable. Good luck. Commented Jul 25, 2015 at 20:04

3 Answers 3

Reset to default
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echo "2015.07.25"|sed "s/\./\//g"

Replacing the "." with "/". Used escape character ("\") to escape special meaning of the characters (. and / ).

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No need to get the swiss army knife out to drive a small nail :)

echo "2015.07.25" | tr . /

Translates the character . to / .

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You can use sed this says substituted for the characters in the site [.] (which is just the '.' char) a forward slash. The g at the end stands for "make this a global substitution, not just replace the first instance.

echo "2015.07.25" | sed 's;[.];/;g'

Result:

$ echo "2015.07.25" | sed 's;[.];/;g'

2015/07/25

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