UNIX for Dummies Questions & Answers

Hi all, I made a C++ program in dos (in dev-C++) and uploaded it on Solaris box. On opening that file with 'vim' editor i found that there is some extra new lines after each written code line. I tried to find out is the file is in dos or in unix format, with 'file' command,and i got "<file-name>.h: ASCII C++ program text". After which i used 'dos2unix' command which shows 'converting file to unix format' but new-lines didn't disappear. Any help on this will be most welcome.

Thanks,

Code:

tr -d '\015' < infile > outfile

sorry but your command didn't work. But, i read man pages and used

Code:

tr -s '\n' < infile > outfile

This is not exactly i wanted. the above command eliminated all blank lines. Still it'll be hard to insert a new line to separate each code-block in 3000 line code. If there is any other way to do this, i am happy to learn more about that.

hi,
I'm looking for a command with which i can change double or repeated (Unix) new line to single new line.
Thanks,

I think what you're after is replacing multiple blank lines with a single blank (the ref to "newline" is slightly confusing). Try:

Code:

nawk 1 RS= ORS="\n\n" infile

or

Code:

sed '/./,/^$/!d' infile

HTH