Grep echo awk print all output on one line


 
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# 1  
Old 03-15-2016
Grep echo awk print all output on one line

Hello,

I've been trying to find the answer to this with Google and trying to browse the forums, but I haven't been able to come up with anything. If this has already been answered, please link me to the thread as I can't find it.

I've been asked to write a script that pulls a list of our CPE then have the script dig through the show.version file to pull a specific entry from there and display it all on one line.

This is the code I've come up with, but the display is all wrong. Note: I am no programmer/scripter, this is something new I'm learning for a recent promotion.

Code:
for CPE_DEVICE in `ls -d *cpe.domain.net`; do; echo $CPE_DEVICE; grep JUNOS $CPE_DEVICE/show.version | grep boot | awk '{print $5}'; done

My output comes out like this

Code:
device1-r0.cpe.domain.net/
[10.4R6.5]
device2-e0.cpe.domain.net/
device3-r0.cpe.domain.net/
[11.4R7.5]

I decided to dissect my code to see where the fault could be. I found that this half works fine in displaying the CPE devices on their own line each

Code:
for CPE_DEVICE in `ls -d *cpe.domain.net`; do; echo $CPE_DEVICE;

I'm not sure what I've done wrong in the second half of my code, but my output should look like this

Code:
device1-r0.cpe.domain.net/[10.4R6.5]
device2-e0.cpe.domain.net/[11.4R7.5]
device3-r0.cpe.domain.net/[11.4R7.5]


Last edited by rwalker; 03-15-2016 at 08:07 AM..
# 2  
Old 03-15-2016
It's not that easy for us to tell what output comes from where. Did you try to stop echo from printing a <newline> char? On some systems (you fail to mention yours), this can be done with the -n option. Or, use printf with an adequate format string.

Please be aware that your entire pipe could probably be replaced by one single awk command.
# 3  
Old 03-15-2016
Quote:
Originally Posted by RudiC
It's not that easy for us to tell what output comes from where. Did you try to stop echo from printing a <newline> char? On some systems (you fail to mention yours), this can be done with the -n option. Or, use printf with an adequate format string.

Please be aware that your entire pipe could probably be replaced by one single awk command.
Programming in ZSH, everything we use is based on FreeBSD.

This line gives me all my CPE in a list just fine.

Code:
for CPE_DEVICE in `ls -d *cpe.domain.net`; do; echo $CPE_DEVICE;

This half is supposed to pull the version running for each CPE and display that next to the CPE name.

Code:
grep JUNOS $CPE_DEVICE/show.version | grep boot | awk '{print $5}'; done


I tried using -n with echo and it didn't help. I don't really know anything about this scripting stuff, so all of this is new to me.

After some research I was thinking that maybe a single awk command would work, but I'm not quite there yet in figuring it out.
# 4  
Old 03-15-2016
Read man echo to find out how to suppress the <newline> char. Or use printf if your zsh provides it.

What would be the result of
Code:
awk '/JUNOS/ && /boot/ {sub (/[^/]*$/, "", FILENAME); print FILENAME $5}' *cpe.domain.net/show.version

?
# 5  
Old 03-15-2016
Quote:
Originally Posted by RudiC
Read man echo to find out how to suppress the <newline> char. Or use printf if your zsh provides it.

What would be the result of
Code:
awk '/JUNOS/ && /boot/ {sub (/[^/]*$/, "", FILENAME); print FILENAME $5}' *cpe.domain.net/show.version

?
I tried echo -n but it still gives me the output wrong. It puts a lot of the devices and their software version on the same line, but I still get lines where multiple devices show together on one line with one software version.

The output comes out like this with echo -n added.

Code:
device1-e0.cpe.domain.net/[11.4R8.5]
device2-e1.cpe.domain.net/device3-e0.cpe.domain.net/[11.4R10.3]
device4-e1.cpe.domain.net/[11.4R10.3]


When I ran what you tried with the proper information filled (filename, domain) in I get this.

Code:
awk: extra ] at source line 1
 context is
        /JUNOS/ && /boot/ {sub >>>  (/[^/] <<< 
awk: syntax error at source line 1
awk: illegal statement at source line 1
        extra ]



The directory I'm running this in has a directory for each CPE device. So this script here pulls a list of all the devices and puts them in a nice neat list for me, no problems.

Code:
for CPE_DEVICE in `ls -d *cpe.domain.net`; do; echo $CPE_DEVICE;

The later half of my code is supposed to pull the show.version information, but GREPing out the word boot and printing the 5th column which is the actual software version. It does do that, however the output isn't where it should be.

Code:
grep JUNOS $CPE_DEVICE/show.version | grep boot | awk '{print $5}'; done

The end result should look like this, where the first half the script pulled each CPE device and the second half pulls the version

Code:
device1-r0.cpe.domain.net/[10.4R6.5]
device2-e0.cpe.domain.net/[11.4R7.5]
device3-r0.cpe.domain.net/[11.4R7.5]

I apologize if I'm not explaining properly or just talking in circles here.
# 6  
Old 03-15-2016
Seems to be an awk version problem. Try to escape the / within the square brackets, like [^\/]*.
# 7  
Old 03-15-2016
Quote:
Originally Posted by RudiC
Seems to be an awk version problem. Try to escape the / within the square brackets, like [^\/]*.
Alright, that allowed the script to run, however, it only gave me a list of the software versions without the device names.
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