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added 214 characters in body

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edited Nov 1, 2019 at 19:08

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Since all you're doing is adding two dashes, and dropping some extra characters, there's not much need for date.

$ sed -Ee 's/(Last Password Change: )(....)(..)(..).*Z/\1\2-\3-\4/' < foo.txt
...
  Name: cust foo
  mail: [email protected]
  Account Lock: FALSE
  Last Password Change: 2017-07-21
...

For a stricter pattern, the dots (that match any character) could be replaced with [0-9] to only match digits. \1 etc. in the replacement of course expand to what ever the patterns in parenthesis matched.

Since all you're doing is adding two dashes, and dropping some extra characters, there's not much need for date.

$ sed -Ee 's/(Last Password Change: )(....)(..)(..).*Z/\1\2-\3-\4/' < foo.txt
...
  Name: cust foo
  mail: [email protected]
  Account Lock: FALSE
  Last Password Change: 2017-07-21
...

Since all you're doing is adding two dashes, and dropping some extra characters, there's not much need for date.

$ sed -Ee 's/(Last Password Change: )(....)(..)(..).*Z/\1\2-\3-\4/' < foo.txt
...
  Name: cust foo
  mail: [email protected]
  Account Lock: FALSE
  Last Password Change: 2017-07-21
...

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answered Nov 1, 2019 at 19:04

ilkkachu

147.9k
16
268
441

Since all you're doing is adding two dashes, and dropping some extra characters, there's not much need for date.

$ sed -Ee 's/(Last Password Change: )(....)(..)(..).*Z/\1\2-\3-\4/' < foo.txt
...
  Name: cust foo
  mail: [email protected]
  Account Lock: FALSE
  Last Password Change: 2017-07-21
...