VI for UNIX Question ...

Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers VI for UNIX Question ...
# 8  
Old 06-22-2011
Originally Posted by zixzix01
Thanks neutronscott,

That "cut" bit was an eye-opener. Still the issue of having that additional column (####Smilie stay in there.
The column went away with my awk example. Not correct or want an awk-less solution?

Originally Posted by zixzix01
Is there a way to selectively erase a pattern (i.e. ####Smilie from a line, on every line in the file?
Yes, as Peasant said, with sed

sed 's/root@####://g' file > outfile

This User Gave Thanks to neutronscott For This Post:
# 9  
Old 06-22-2011
Well the sed command won't work, because like I originally said, the part (root@####) is different on many lines. The #### is just a label for multiple different servers, like server1, server 3.

There is like 15 of them. I don't wan't to type in the sed command for every different root@server1, root@server2, root@server3, etc.

Do you see what I'm saying?

About the awk part, it works, I just have to trim the part of the lines containing server names delimited by colon.

Here is the file with servers listed, maybe that will help with the visual:

root@server1: /opt/sysadm/bin/ need to install
root@server2: /opt/sysadm/lib/rtidirs.dist.20110131: need to install
root@server4: /opt/dba/bin/goe: need to update
root@server1: /opt/dba/bin/ need to update
root@server1: server1: /opt/dba/results/res03000.r: need to remove
root@server2: server2: /opt/dba/results/res03001.r: need to remove
root@server3: server3: /opt/dba/results/res03099.r: need to remove
Does that make more sense. I know I'm confusing people, but see how there are different servers being listed and that the bottom part of the file has one more column delimited by a colon.

I would have to use separate sed commands, unless there is a way to delimit that part and erase it from every line.
# 10  
Old 06-22-2011
But the awk version took care of the extra column, because it just uses ':' as delimiter and prints the last 2 columns...

mute@geek:~/test$ awk -F: 'NF > 2 { print $(NF-1) $NF }' sync.txt
 /opt/sysadm/bin/ need to install
 /opt/sysadm/lib/rtidirs.dist.20110131 need to install
 /opt/dba/bin/goe need to update
 /opt/dba/bin/ need to update
 /opt/dba/results/res03000.r need to remove
 /opt/dba/results/res03001.r need to remove
 /opt/dba/results/res03099.r need to remove

This User Gave Thanks to neutronscott For This Post:
# 11  
Old 06-22-2011
It's giving me an error on the sync.txt file:

awk: Cannot find or open file sync.txt.
 The source line number is 1.

# 12  
Old 06-22-2011
It means what it says. You don't have sync.txt

Replace it with your own filename, or leave the filename off completely and just pipe something into it.

If you're telling vi to use it as a filter, I suppose you'd just leave it off.
This User Gave Thanks to Corona688 For This Post:
# 13  
Old 06-22-2011
Nice...that did it. Thanks guys....
# 14  
Old 06-23-2011
This sed should fill your requirment i believe.
sed 's/root@\(server[0-9]\{1,4\}: \)\|\(server[0-9]\{1,4\}: \)//g' input > output

This User Gave Thanks to Peasant For This Post:
Login or Register to Ask a Question

Previous Thread | Next Thread

9 More Discussions You Might Find Interesting

1. UNIX for Beginners Questions & Answers

Question on UNIX

Hi, Can you please advise on answers of below 4 questions as I am not sure on the answers. 1. You are porting a C program that interacts over a network with remote systems. The program was originally written on AMD64 Linux. You are migrating it to SPARC Solaris architecture. Question Based on... (1 Reply)
Discussion started by: Vivekit82
1 Replies

2. UNIX for Dummies Questions & Answers

UNIX question

Pleas I want answer this question or reference or link website can find answer to this question? 1. We consider that we are running on a UNIX system which uses ACL as a mechanism for file protection. Where is the protection information of the file stored? 2. In UNIX, each device is... (1 Reply)
Discussion started by: tamer11007
1 Replies

3. UNIX for Dummies Questions & Answers

Unix question

When you enter your login id and password, what determines what program startsup? Is it always a Unix shell? (3 Replies)
Discussion started by: Alice Klein
3 Replies

4. Solaris

Unix Question

IF A program or database routine is writing in a file laying on unix box then how can be identify the process id which is writing in the file. Please let me know how can we do using root command and without root command? Regards, Shashank (10 Replies)
Discussion started by: TAPARIA
10 Replies

5. UNIX for Dummies Questions & Answers

Question about unix

Hey everyone i am new to unix as well, has anybody heard of the script that allows you screen to look just like the Windows screen, if yea, what is it? (3 Replies)
Discussion started by: Gueso
3 Replies

6. UNIX for Dummies Questions & Answers

Unix History Question: Why are filenames/dirnames case sentsitive in Unix?

I tried looking for the answer online and came up with only a few semi-answers as to why file and directory names are case sensitive in Unix. Right off the bat, I'll say this doesn't bother me. But I run into tons of Windows and OpenVMS admins in my day job who go batty when they have to deal... (3 Replies)
Discussion started by: deckard
3 Replies

7. UNIX for Dummies Questions & Answers

Unix 10.2 question

I'm a verteran to Windows but i newbie to UNIX so i hope this isn't too dumb of a question. I have an HP 9000 D Class Server that has 10.2 and uses a console. The console died and i was told i can put a standard EISA video card in it and use a regualr monitor and keyboard. My question is how do i... (5 Replies)
Discussion started by: egress1
5 Replies

8. IP Networking

unix to unix serial connection question

hi there i'm a new bie just got few simple questions to ask. I got expert in windows configuration but totally new to unix environment . I want to make sure a com port (com1) is working, so I connect a 9-pin cable (CB9) for both PC using Unix environment (unix to unix). The question are (1)... (1 Reply)
Discussion started by: typsam
1 Replies

9. UNIX for Dummies Questions & Answers

unix question

How might you look at the last mail message someone sent you , without running the mail utility? (1 Reply)
Discussion started by: swetha
1 Replies
Login or Register to Ask a Question