UNIX for Dummies Questions & Answers

I have a file listing IP addresses, 1 per line, such as:

1.2.3.4
3.4.5.6
12.13.14.15
7.8.9.6

I want all of the entries to be on the same line, and quoted, such as:

"1.2.3.4" "3.4.5.6" "12.13.14.15" "7.8.9.6"

I got the quotes on there in vi with ":%s/^/"/g" and "%s/$/"/g" ... is there an easier way?

Then I had to manually put them to 1 line by doing [del] [end] [space] about 25 times ... which was fine for this file that had ~25 entries, but in the future I may have to do it to a file with 1000+, so and awk or sed command that could do it would be great.

Thanks for your help.

Code:

paste -s -d' ' input_file > output_file

Given your input file format:

Code:

printf "\"%s\" " $(<file)

If you want the last new line:

Code:

printf "\"%s\" " $(<file);printf "\n"

To put quotes before and after:

Code:

sed -e 's/^/"/' -e 's/$/"/' input_file > output_file

Or:

Code:

ex - infile<<!
%s/.*/"&"
%j|x
!

Code:

sed -i.bak 's/\(.*\)/"\1"/' input_file

If you want a newline at the end of the output file:

Code:

awk '{printf"\"%s\" ",$0}END{print}' input_file > output_file

You meant:

Code:

... END{print ""}'