CODEWITHSUNDEEP
sedgrep
impossible
impossible

Reputation: 2500

Delete line char using sed when not matching a pattern

After my grep, I generated a file which has data as key and count but on separate lines:

$Value, "Some", $233kS
:2343
$AnotherCount, JunkValue
:38585
YetAnother, Nothing
:38484

I want a file like:

$Value, "Some", $233kS:2343
$AnotherCount, JunkValue:38585
YetAnother, Nothing:38484

The count pattern is fixed, it is always of form :[0-9]* Is it possible using sed or any single line command?

I looked at replace line but I want only when the count pattern is not matched.

I am interested in solution that can work for extended problem:

$Value, "Some", $233kS
$AnotherCount, JunkValue
:38585
YetAnother, Nothing
:38484

Should output:

$Value, "Some", $233kS$AnotherCount, JunkValue:38585
YetAnother, Nothing:38484

Basically, all the lines not matching the pattern should not have end line char.

Upvotes: 0

Views: 66

Answers (1)

kvantour
kvantour

Reputation: 26471

Any of these might help you out:

$ awk '!(FNR%2){ print b $0 }{b=$0}' file
$ paste -sd "\0\n" file

Both of these lines assume that the odd lines need to be concatenated with the even lines

note: according to POSIX paste "\0" is considered an empty string, not the <null>-character

Upvotes: 2

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