Visit The New, Modern Unix Linux Community

Dig match

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Dig match
# 1  
Dig match


I am testing some code to match a grep to see if one of the dns server exists but it does not seem to match:



if [`dig +short NS | grep| wc -l` -eq 1 ]; then

 echo "OK: DNS : exists"

 echo "CRITICAL: DNS : NOT found"

dig +short NS


# 2  

For some reason this machine has no dig available, so the following is untesteted.
RESULT=$(dig +short NS | grep "$SEARCH")
[ "$SEARCH" = "$RESULT" ] && \
    echo "OK: DNS : exists" || \
    echo "CRITICAL: DNS : NOT found"

# 3  
@dmccabe: Your script thorws a different error message than you describe: [1: command not found
This is because there is no space after the square bracket:
if [ `dig +short NS | grep| wc -l` -eq 1 ]; then

# 4  

Thank you so much!
# 5  
The condition could be done as just:

$ if [[ -n $(dig +short) ]] ; then ... fi

# 6  
Thanks Aia!

Previous Thread | Next Thread
Thread Tools Search this Thread
Search this Thread:
Advanced Search

Test Your Knowledge in Computers #958
Difficulty: Hard
Metamorphism protects a virus against heuristic analysis.
True or False?

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Perl dig script

Experts - I was hoping someone could help me out with the logic on this perl script. I'm trying to run some dig commands and parse in such a way as to group them together. Here's what I have so far. #!/usr/bin/perl system(clear); my @host = qw/ /; foreach... (2 Replies)
Discussion started by: timj123
2 Replies

2. UNIX for Dummies Questions & Answers

Dig total query time?

I'm using a .txt file filled with domain names for dig to use, the problem is that when i look at the results I get the query time for each individual query, I want to know how long it took in total for all queries to run, how can I achieve this? any help would be greatly appreciated, thank you.... (3 Replies)
Discussion started by: r7a7v7
3 Replies

3. UNIX for Advanced & Expert Users

DIG uses localhost

Hi, I have these entries in the /etc/esolv.conf: ------------ domain xxxxxx search yyyyyy nameserver nameserver aaaaaaaaaaaaaaaa nameserver bbbbbbbbbbbbbbbb ------------- When I use 'dig' or 'nslookup' command, like 'dig' it uses the localhost as the server. I... (2 Replies)
Discussion started by: chaandana
2 Replies

4. IP Networking

The dig command

Can I use two different DNS servers in the one command in the form of primary and secondary. Take this for example: dig @<primaryAddress> @<secondaryAddress> MX domain.tld So if primary address is down, it will use the secondary address as a backup. It seems to work when testing, but thought... (1 Reply)
Discussion started by: neil_is_ere
1 Replies

5. UNIX for Dummies Questions & Answers

dig query time

Hi Guys, I just need a confirmation if what think i know is right . dig ; <<>> DiG 9.7.0-P1 <<>> ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 27410 ;; flags: qr rd ra; QUERY: 1, ANSWER: 5, AUTHORITY: 0, ADDITIONAL: 0 ... (1 Reply)
Discussion started by: mtomar
1 Replies

6. UNIX for Dummies Questions & Answers

Dig command output?

all, i am newbie to dns bind . Any help is very appreciated. I am using dig command to view the records in the config. I am expecting the following comamnds to display all the A (Address records) in the zone data file. my zone data file looks like this ------------------- $ORIGIN . $TTL... (2 Replies)
Discussion started by: sujathab
2 Replies

7. UNIX for Dummies Questions & Answers

linux dig command

When I use the linux dig command such as #dig it resolves but when I use the same command as root it gives me error "Segmentation Fault" Please advise I am completly baffled. (1 Reply)
Discussion started by: Tirmazi
1 Replies

8. Shell Programming and Scripting

New to UNIX - what script to dig into to

First I would like to thank you for your time in running a great Forum! Background - Windows/ASP/VB COM/SQL Server programmer/Webmaster. Desire - To build similar skillset on UNIX. I am looking at learning Perl or Python (maybe Jython due to connection to Java). I have a brief background... (3 Replies)
Discussion started by: nimrod
3 Replies

9. UNIX for Dummies Questions & Answers

BIND and dig errors

Hi all, I'm running BIND 9.1.3 and the accompanying `dig and nslookup' on a vanilla Redhat 7.2 Linux box. I've produced all of my Zone data and config files (I used h2n with some manual tweaks to do this, as some >= v8.2 BIND features aren't properly supported as far as I can see). Im my... (6 Replies)
Discussion started by: sam_pointer
6 Replies

10. UNIX for Dummies Questions & Answers


what is dig? Is it just a advanced type of nslookup? how to use it? //nicke:confused: (1 Reply)
Discussion started by: nicke30
1 Replies

Featured Tech Videos