Login or Register to Ask a Question and Join Our Community


Shell Programming and Scripting

Help extracting single instance of numbers which repeat

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Help extracting single instance of numbers which repeat
# 8  
Old 02-28-2013
Quote:
Originally Posted by bartus11
Code:
... | sort | uniq | tr '\n' ' ' | read var1 var2 var3 ...

This doesn't appear to work.
# 9  
Old 02-28-2013
How are you testing if it works? What is the output of:
Code:
... | sort | uniq | tr '\n' ' ' | read var1 var2 var3; echo $var3

# 10  
Old 02-28-2013
The output is blank.

I'm testing it by running:

Code:
grep 'MAM' test.pdb | awk '{print substr($0,25,2)}' | sort | uniq | tr '\n' ' ' | read var1 var2 var3; echo $var3

I'm using grep beforehand as stated because I don't want every line in the file to be analysed.
# 11  
Old 02-28-2013
Try this then:
Code:
grep 'MAM' test.pdb | awk '{print substr($0,25,2)}' | sort | uniq | perl -pe 's/\n/ /' | read var1 var2 var3; echo $var3
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to repeat a character in a field if it's a single character?

I have a csv dataset like this : C,rs18768 G,rs13785 GA,rs1065 G,rs1801279 T,rs9274407 A,rs730012 I'm thinking of use like awk, sed to covert the dataset to this format: (if it's two character, then keep the same) CC,rs18768 GG,rs13785 GA,rs1065 GG,rs1801279 TT,rs9274407... (7 Replies)
Discussion started by: nengcheng
7 Replies

2. UNIX for Advanced & Expert Users

How to check a single process instance is always running?

Hi, I want to write one program in C in Unix OS which will check the running status of a process time to time. If the process is stopped somehow by any means, it will ensure that the process is restarted and only one copy of the process image should run in memory at any point of time for the user.... (2 Replies)
Discussion started by: sanzee007
2 Replies

3. Shell Programming and Scripting

Extracting numbers

Hi I am part of a academic organization and I want to send a fax to the students however there must be a quicker way to get the fax numbers extracted from the online forms they sent me. The file looks like this (numbers are fake in order to protect identity): Biochemistry Major Michael... (3 Replies)
Discussion started by: phil_heath
3 Replies

4. Shell Programming and Scripting

help needed to put instance numbers

Hi All I need help am having a source file as below emp dept class subclass region country division first i need to get line count and i need to divide by 3 it is an parameter passing value number of lines 7 (8 Replies)
Discussion started by: ragu.selvaraj
8 Replies

5. AIX

HACMP 5.4.1->5.5 offline upgrade - different instance numbers ?

Hello, I did offline HACMP(PowerHA) upgrade 5.4.1 to 5.5 - basically stopped HACMP services and upgraded cluster.* filesets. Tried to start services again - topsvcs refused to start on second node complaining that node instance numbers are different - and indeed they are different. This is... (2 Replies)
Discussion started by: vilius
2 Replies

6. Shell Programming and Scripting

Extracting text between two strings, first instance only

There are a lot of ways to extract text from between two strings, but what if those strings occur multiple times and you only want the text from the first two strings? I can't seem to find anything to work here. I'm using sed to process the text after it's extracted, so I prefer a sed answer, but... (4 Replies)
Discussion started by: fubaya
4 Replies

7. UNIX for Dummies Questions & Answers

Extracting numbers and multipling

Hi All, I have searched the forum but couldn't find exactly what I need. Hopefully someone may be able to help. I'm trying to put a script together that will extract numbers from a text file and multiply them by, for example 1.5 or 1.2 Sample file looks like this...... (1 Reply)
Discussion started by: speedfreak
1 Replies

8. Shell Programming and Scripting

getopts ... only allow a single instance of an argument?

Hi there, if i have a simple getopts like below ...how can i make it so that if somebody enters more than one -g argument for example, it will error with a " you cannot enter more than one -g" or something like that.? I want to only allow one instance of a -g or a -h etc .. while getopts... (1 Reply)
Discussion started by: hcclnoodles
1 Replies

9. Shell Programming and Scripting

Single Instance

Hi, I have a script. I want only one instance of the script to be running at any point of the time. How can I do it. what would be the exact format of the ps command for doing this. For example the name of my script is "Inst.sh" Thanx in advance (2 Replies)
Discussion started by: sendhil
2 Replies

10. Shell Programming and Scripting

Single Instance of a Shell Script

Hi, I have a shell script. What should I do to allow only single instance of the script to be run by a user at a time. That is, Only one user can run that script at a given point of time. Please help.. Its very important for my project Thanks in advance (4 Replies)
Discussion started by: pathanjalireddy
4 Replies
Login or Register to Ask a Question