command to write on first line of a file (as a heading for columns) in linux/solaris.
Linux - NewbieThis Linux forum is for members that are new to Linux.
Just starting out and have a question?
If it is not in the man pages or the how-to's this is the place!
Welcome to LinuxQuestions.org, a friendly and active Linux Community.
You are currently viewing LQ as a guest. By joining our community you will have the ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today!
Note that registered members see fewer ads, and ContentLink is completely disabled once you log in.
If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here.
Having a problem logging in? Please visit this page to clear all LQ-related cookies.
Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Click Here to receive this Complete Guide absolutely free.
i have file which is few line. i want to add some heading to the file in the first line. How can i?
You write a script to do it.
Echo your header to the file, then use the cat with the append operator ">>" to put the rest of the text into it, then use the mv (or cp) command(s) to get the file named what you want, and try to reference the man pages and Google scripting examples first.
You were given the solution...how about trying it, and then trying to figure out how to make it work for your exact needs?? Read man pages...try Google. Coming back with each command, saying "it's not working!!!", shows little effort on your part, when you've been given the solution already.
Your request was for how to put a header into a file. I gave you two solutions that work. Want spaces in it? Put them in...and here's a hint: read your previous threads about replacing things, then think about what you did to get characters substituted. That was a backslash, right?? Think that would work here????
Separating the fields with tabs, you will have columns that don't line up because some entries are too long, pushing the next column over to the next tab. You might want to look at using AWK with formatted printing, to control where each field should start.