Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Silly question on printing for loop in AWK

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Silly question on printing for loop in AWK
# 1  
Old 12-10-2007
Silly question on printing for loop in AWK
Hi,

One silly question. I would like to add statement like below and append to a file. I used the below code; however, it does not work. Can anyone please tell me what mistakes I have made?

awk '
{ for (i=1;i<=563;i++)
print i


}'>>output.txt

Thanks.

-Jason
# 2  
Old 12-11-2007
Remember that awk is a filter. It wants to read a file line by line and it would try to run your code for each line. But you can do this:

Code:
$ awk 'BEGIN { for (i=1;i<6;i++) print i ; exit 0 }'
1
2
3
4
5
$

I am getting away with having no input file. The BEGIN block is executed before the file is opened and since it exits, awk never tries to open a file.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk: printing column using for loop

Hello: I've input data: Input data --- 3:60069:C:T 60069 C T 1 0 0 1 0 0 1 0 0 1 0 0 1 --- 3:60079:A:G 60079 A G 1 0 0 0.988 0.012 0 1 0 0 1 0 0 1 --- rs186476240:60157:G:A 60157 G A 1 0 0 1 0 0 1 0 0 1 0 0 1 I edit/make first few columns before numbers (6th column) and want to... (4 Replies)
Discussion started by: genome
4 Replies

2. Post Here to Contact Site Administrators and Moderators

Might be silly question

Hi Team, In case if i want to delete one of my posting thread.. can i delete that? Just asking to know.. (5 Replies)
Discussion started by: darling
5 Replies

3. Shell Programming and Scripting

A silly question

FILENAME is a variable. Is there really any difference between "$FILENAME.sh" and "$FILENAME".sh ? (5 Replies)
Discussion started by: proactiveaditya
5 Replies

4. Solaris

I have a silly question

Can anyone tell me where is the best place to put my own system related scripts on a solaris server. I usually place my scripts in /usr/sbin/<my_name>, but that is only because my senior sysadmin used to do that. What does the "unix etiquette" say? (8 Replies)
Discussion started by: soliberus
8 Replies

5. Shell Programming and Scripting

printing with awk through while loop

ive input file contains to clums a and b spreated by pipe a | b 123|456 323|455 and xyz contains other info about a and b now i want to print as follows: a | b | "info from xyz" but "info from xyz" might be more than 1 line and i want to keep the format to 3 cloums. how to do it?... (3 Replies)
Discussion started by: windows
3 Replies

6. UNIX for Dummies Questions & Answers

silly question ..

hi all last week i had appeared for an interview where they asked me as u work on windows & unix tell me what are the advantages of UNIX over windows & vice versa ..i gave 2-3 reasons but when i told that unix is more secure than windows he asked me how ? i was speechless. then i googled about... (6 Replies)
Discussion started by: zedex
6 Replies

7. Solaris

Silly question regarding SSH.

Hi Guys, I have installed SSH package on server as well as clients. I think I need to these steps next. Login as root on the server. 1) ssh-keygen -b 1024 -t rsa -f /etc/ssh_hosts_key.pub -N " " Login to root as the user. 2)ssh_keygen -b 1024 -t rsa Enter the phrase Basically this... (3 Replies)
Discussion started by: nitinkgoud
3 Replies

8. UNIX for Dummies Questions & Answers

silly question

How do I go about finding the number of unique words in a file. (3 Replies)
Discussion started by: EECSDAVE
3 Replies

9. UNIX for Dummies Questions & Answers

Silly question about a process

I know its kinda silly but I've seen the texts consider one side - a thread executes and finishes its task but I was wondering what will happen if the process dies when the thread is still under execution... I somehow think that the thread will continue execution but am backing off from the fact... (10 Replies)
Discussion started by: Legend986
10 Replies

10. Solaris

Silly question

Are GNOME or javadsktop supported of the box on Solaris 10 on Ultra (SUNBlade 1500) ? I'could switch desktops to KDE at CDE logon. But when I tried to use the JavaDesktop it simply returns me back to the log on screen of CDE. How do I conigure to the latest GNOME and.or JavaDesktop if... (3 Replies)
Discussion started by: miket
3 Replies
Login or Register to Ask a Question