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10-28-2008
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add a hyphen every 2 characters of every line
I have a text file like this with hundreds of lines:
>cat file1.txt 1027123000 1027124000 1127125000 1128140000 1228143000 > all lines are very similar and have exactly 10 digits. I want to separate the digits by twodigit and hyphens....like so, > 10-27-12-30-00 10-27-12-40-00 11-27-12-50-00 11-28-14-00-00 12-28-14-30-00 > I just did some searching on this forum and it looks like I'll need a command that takes on this form: sed "s/\([0-9]\......" I need the exact notation though? |
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