Copy/Move Entire Line To End Of The Line Above

djc72uk

5/23/24, 2:34 PM

I have a file that looks like the following:

/path/to/a/very/long/path
       0 0 0 0 0 0

I need to move the line starting with a number (this can be any value not necessarily 0) to the end of the preceding line so that it looks like the following:

/path/to/a/very/long/path 0 0 0 0 0

1 + 2

bash

grep

awk

sed

shell-scripting

Romeo Ninov

5/23/24, 2:52 PM

Do you have more than one pair of such lines in the file?

djc72uk

5/23/24, 2:54 PM

Yes, multiple lines that all read and start with the long path followed by the next line with the numeric values.

Score:0

Server

Romeo Ninov

5/23/24, 2:58 PM

Some awk program can do the work line this:

awk '{if(NR%2==0) {print var,$0} else {var=$0}}' input_file >output_file

It use awk internal variable NR which is the number of current line.

Here is example:

# cat qs
/path/to/a/very/long/path
       0 0 0 0 0 0
/path/to/a/very/long/path
       1 2 0 0 0 0


# awk '{if(NR%2==0) {print var,$0} else {var=$0}}' qs
/path/to/a/very/long/path        0 0 0 0 0 0
/path/to/a/very/long/path        1 2 0 0 0 0

+ 0

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Copy/Move Entire Line To End Of The Line Above

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