Login or Register to Ask a Question and Join Our Community


UNIX for Dummies Questions & Answers

Can't figure out why this repeats

 
Thread Tools Search this Thread
Top Forums UNIX for Dummies Questions & Answers Can't figure out why this repeats
# 1  
Old 07-24-2012
Can't figure out why this repeats
Code:
#!/bin/sh
while IFS=: read address port; do
        : ${port:=443}
        address=$address
        port=$port
        
        cd $f_location
        
        number=`grep "$address" thing.txt -A 1 | grep "addresses=" | cut -d'"' -f2`

        echo "$address,$port,$number,$answer" >> /var/tmp/results.txt | tee -a $log

done < address.txt

Now when that is run the script loops a couple of times and then exits. Why would it repeat?

My address.txt only has stuff written like this:
Code:
www.google.com:80
www.gmail.com:8080
www.amazon.com:443
www.msn.com
www.hotmail.com
www.unix.com

# 2  
Old 07-24-2012
This line is suspect:
Code:
echo "$address,$port,$number,$answer" >> /var/tmp/results.txt | tee -a $log

You have already redirected echo's output into results.txt, you can't do that and still pipe it into tee.

Tee may be reading from standard input, eating all your lines, and breaking the loop early.
# 3  
Old 07-24-2012
You can probably replace the line selecting 'number' with a single awk call by the way, but I'd need to see what thing.txt looks like.
# 4  
Old 07-24-2012
Quote:
Originally Posted by Corona688
This line is suspect:
Code:
echo "$address,$port,$number,$answer" >> /var/tmp/results.txt | tee -a $log

You have already redirected echo's output into results.txt, you can't do that and still pipe it into tee.

Tee may be reading from standard input, eating all your lines, and breaking the loop early.
No that didn't fix it for me. It still loops...
# 5  
Old 07-24-2012
Quote:
>> /var/tmp/results.txt
This appends to the existing file on the second and subsequent run of the script. Perhaps you need to initialise the file at the top of the script?

Btw. $log is not set anywhere in the script and as Corona688 notes, the tee is pointless.

If you change your script, please post the current version and some evidence of what happens.
# 6  
Old 07-24-2012
H,

Try it this way;

Code:
echo "$address,$port,$number,$answer" | tee -a $log >> /var/tmp/results.txt

But you will have to declare the $log variable.

Regards

Dave
# 7  
Old 07-24-2012
Thank you so much for all the responses. Unfortunately none of those solutions worked for me either.
 
Login or Register to Ask a Question

Previous Thread | Next Thread

8 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Bash to rename files repeats previous filename in directory

In the below bash processes substitution, if there are 3 files in a directory /home/cmccabe/medex.logs/analysis.log, the filename variable is set to where these files are located. The code does execute, the problem is that if there is a renamed file in the output directory below, it gets... (0 Replies)
Discussion started by: cmccabe
0 Replies

2. Shell Programming and Scripting

Help with change significant figure to normal figure command

Hi, Below is my input file: Long list of significant figure 1.757E-4 7.51E-3 5.634E-5 . . . Desired output file: 0.0001757 0.00751 0.00005634 . . . (10 Replies)
Discussion started by: perl_beginner
10 Replies

3. Shell Programming and Scripting

Searching a large file for short tandem repeats

Hello, I am searching large (~25gb) DNA sequence data in fasta short read format: >ReadName ACGTACGTACGT... for short tandem repeats, meaning instances of any 2-6 character based run that are repeated in tandem a number of times given as an input variable. Seems like a reasonably simple... (3 Replies)
Discussion started by: ljk
3 Replies

4. Shell Programming and Scripting

Remove brackets repeats and separate in columns

Hi all, I want to remove the remove bracket sign ( ) and put in the separate column I also want to remove the repeated entry like in first row in below input (PA156) is repeated ESR1 (PA156) leflunomide (PA450192) (PA156) leflunomide (PA450192) CHST3 (PA26503) docetaxel... (4 Replies)
Discussion started by: manigrover
4 Replies

5. Shell Programming and Scripting

sed behaving oddly, repeats lines

Hi, all. Here's the problem: sed '/FOO/,/BAR/p' That should print anything between FOO and BAR, right? Well, let's say I have file.txt that contains just one line "how are you today?". Then I run something like the above and get: $ sed '/how/,/today/p' file.txt how are you... (9 Replies)
Discussion started by: pereyrax
9 Replies

6. UNIX for Dummies Questions & Answers

awk repeats counter

if I wanted to know if the word DOG(followed by several random numbers) appears in col 1, how many times will that same word DOG* appeared in col 2? This is a very large file Thanks! (7 Replies)
Discussion started by: verse123
7 Replies

7. Shell Programming and Scripting

Cant figure out this..

Hi, I need a little help here. I am exporting user info from a PSQL database and everything is working with the exception of this: 10029008:dsAuthMethodStandard\:dsAuthClearText:classword:10029008:2004:10029008:10029008:/home/student/1002/90/08:10029008 It is putting a colon right before the... (1 Reply)
Discussion started by: Stud33
1 Replies

8. UNIX for Dummies Questions & Answers

Search for repeats in text file - how?

I have a text file that I want to search for repeated lines and print those lines. These would be lines in the file that appear more than once. Is there a way to do this? Thanks (4 Replies)
Discussion started by: aarondesk
4 Replies
Login or Register to Ask a Question