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awk print not working properly

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# 1  
Old 08-04-2018
awk print not working properly
Hello friends,

There is one requirment where I need to login into database environment and pull all schema names into a text file ...

as of now below are the schemas available...
Code:
$> describe keyspaces;

system_schema  system_auth  system  abc system_distributed  system_traces

Now from unix script I need to fetch all these names into a file for further processing, so i wrote command like
Code:
## List All Keyspaces
cqlsh myhostname -e "DESC KEYSPACES" | awk '{print $1 "\n" $2 "\n" $3 "\n"}'| grep -v "^$" | sort > Keyspace_name_schema.cql

But I am getting only below values as output.
Code:
system
system_auth
system_schema

the below are omitted
Code:
abc system_distributed  system_traces

However, same script working fine on different environment(exactly configure like this environment) ..its driving me crazy...

Can anyone suggest..
Last edited by onenessboy; 08-04-2018 at 07:04 AM.. Reason: .
# 2  
Old 08-04-2018
Try
Code:
awk '{for (i=1; i<=NF; i++)  if ($i ~ /system/)  print $i}'

.

EDIT: The struck through if was because I misread your spec to only contain system related tables...
Last edited by RudiC; 08-04-2018 at 08:37 AM..
This User Gave Thanks to RudiC For This Post:
onenessboy
# 3  
Old 08-04-2018
Hi thanks for reply,


But now its omitting analytic only below are captured
Code:
system
system_auth
system_distributed
system_schema
system_traces

any other suggesstion

------ Post updated at 05:41 AM ------

sorry, didnt see your update in post..

awk '{for (i=1; i<=NF; i++) if ($i ~ /system/) print $i}'

now this work fine thank you so much Smilie

------ Post updated at 05:42 AM ------

thank yoyu

did not notice your update in post

awk '{for (i=1; i<=NF; i++) print $i}'

this is working super..thanks a lot
# 4  
Old 08-04-2018
Code:
echo '
system_schema  system_auth  system  abc system_distributed  system_traces' | tr ' ' '\n' | sed '/^$/d'

# 5  
Old 08-04-2018
If you're using sed anyhow, why not eliminate tr?
Code:
echo '
system_schema  system_auth  system  abc system_distributed  system_traces' | sed '/^$/d; s/  */\n/g'

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