Check Status of Services-CodePudding

i am trying to create a script to get the Service status from different Remote servers:

#!/bin/bash

USERNAME=vagrant

isengine=(server1 server2 server3 server4 server5)
isengine_services=( ds.rc DFDServer ISFAgents ODFEngine)


for h in "${isengine[@]}"
do
  echo "${h}" >> test.txt
  for i in "${isengine_services[@]}"
  do
     sshpass -p "mysecret" ssh  -o StrictHostKeyChecking=no  "${USERNAME}"@"${h}" "echo ${i}; systemctl status ${i} | grep Active" >> tmp.txt

  done
done

cat tmp.txt

I get very chaotic output that look like this:

server1
ds.rc
   Active: active (running) since Mon 2021-09-13 10:04:48 CEST; 3 days ago
DFDServer
   Active: active (running) since Mon 2021-09-13 10:05:02 CEST; 3 days ago
ISFAgents
   Active: active (running) since Mon 2021-09-13 10:04:46 CEST; 3 days ago
ODFEngine
   Active: active (running) since Mon 2021-09-13 10:04:20 CEST; 3 days ago

is it possible to make it look the following way:

server1

ds.rc       Active: active (running) since Mon 2021-09-13 10:04:48 CEST; 3 days ago
DFDServer   Active: active (running) since Mon 2021-09-13 10:05:02 CEST; 3 days ago
ISFAgents   Active: active (running) since Mon 2021-09-13 10:04:46 CEST; 3 days ago
ODFEngine   Active: active (running) since Mon 2021-09-13 10:04:20 CEST; 3 days ago

CodePudding user response：

You might use GNU AWK for converting from two-liners to one-liners as follows, let file.txt content be

server1
ds.rc
   Active: active (running) since Mon 2021-09-13 10:04:48 CEST; 3 days ago
DFDServer
   Active: active (running) since Mon 2021-09-13 10:05:02 CEST; 3 days ago
ISFAgents
   Active: active (running) since Mon 2021-09-13 10:04:46 CEST; 3 days ago
ODFEngine
   Active: active (running) since Mon 2021-09-13 10:04:20 CEST; 3 days ago

then

awk '{ORS=NR%2?"\n":" ";print}' file.txt

output

server1
ds.rc    Active: active (running) since Mon 2021-09-13 10:04:48 CEST; 3 days ago
DFDServer    Active: active (running) since Mon 2021-09-13 10:05:02 CEST; 3 days ago
ISFAgents    Active: active (running) since Mon 2021-09-13 10:04:46 CEST; 3 days ago
ODFEngine    Active: active (running) since Mon 2021-09-13 10:04:20 CEST; 3 days ago

Explanation: If number of current row (NR) is odd (i.e. remainder of division by 2 is non-zero) then print this line followed by newline otherwise use space (condition?value1:value2 is AWK's ternary operator, if condition is meet value1 is used, otherwise value2 is used). In other words join every even line and subsequent line with space between them.

(tested in gawk 4.2.1)

CodePudding user response：

You can set services variable from this:

isengine_services=( ds.rc DFDServer ISFAgents ODFEngine)

to be this:

isengine_services="ds.rc DFDServer ISFAgents ODFEngine"

and replace the internal loop:

  for i in "${isengine_services[@]}"
  do
     sshpass -p "mysecret" ssh  -o StrictHostKeyChecking=no  "${USERNAME}"@"${h}" "echo ${i}; systemctl status ${i} | grep Active" >> tmp.txt
  done

with this:

echo $h  >> tmp.txt
sshpass -p "mysecret" ssh  -o StrictHostKeyChecking=no  "${USERNAME}"@"${h}" "systemctl status $isengine_services"  >> tmp.txt