about the vi editor

zwylinux · 05-27-2006, 10:31 AM

I have a file,the contents as follows:
$ cat myfile
1,Tom,20
2,Jim,18
3,Lily,19

with the vi editor ,how can i change the content as
"1","Tom",20
"2","Jim",18
"3","Lily",19

Please help me,many thanks.

alunduil · 05-27-2006, 10:49 AM

The editor vi has a little tutorial that doesn't take too long (~30 mins). To access it just type:

Code:

vimtutor

That will show you the basics of using vim.

Regards,

Alunduil

randyding · 05-27-2006, 10:51 AM

Well try this first, close the editor for a second and run this command on the file

Code:

awk -F, '{ print "\"" $1 "\",\"" $2 "\"," $3 }' filename >newfilename

zwylinux · 05-27-2006, 11:23 AM

But how to carry out this opening the file with vi?

osor · 05-27-2006, 12:34 PM

Quote:

Originally Posted by zwylinux

But how to carry out this opening the file with vi?

Sigh,

1.) Open vi

Code:

$ vi

2). Open your file

Code:

:e ./myfile

3). Process all of your file through awk

Code:

:%!awk -F, '{ print "\"" $1 "\",\"" $2 "\"," $3 }'

4). Write and quit

Code:

:wq

aluser · 05-27-2006, 01:12 PM

here's one way to do it in vi:

Code:

:%s/\([^,]*\),\([^,]*\)/"\1","\2"/

maybe someone else can do it prettier

osor · 05-27-2006, 01:14 PM

Sigh,

1.) Open vi

Code:

$ vi

2). Open your file

Code:

:e ./myfile

3). Process all of your file through the substitute command

Code:

:%s/^\([0-9]*\),\([a-zA-Z]*\),\([0-9]*\)$/"\1","\2",\3

4). Write and quit

Code:

:wq

zwylinux · 05-27-2006, 10:36 PM

Many thanks!

dive · 05-28-2006, 09:15 AM

If you use vim rather than vi you can use :x to save and exit.

introuble · 05-28-2006, 09:25 AM

But ":wq" is classic !

rickh · 05-28-2006, 09:33 AM

Quote:

1. If you use vim rather than vi you can use :x to save and exit.
2. But ":wq" is classic !

When I first learned vi, I learned that "ZZ" from command mode does the same thing. Sorry. I just can't give it up.

zwylinux · 05-28-2006, 11:04 AM

vim is really powerful,maybe we neet to talk about the vim editor another time.

osor · 05-28-2006, 12:35 PM

Quote:

Originally Posted by zwylinux

vim is really powerful,maybe we neet to talk about the vim editor another time.

If you use vim rather than vi, you have regexps that match digits (i.e., instead of [0-9] you have \d) and alphabetic characters (i.e., \a instead of [a-zA-Z]), and a whole lot more tools at your disposal.