Grep -A1 format output

Question

I have 10 files with several IP ping test results

--- 10.90.101.224 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2003ms
Some Text here...
--- 10.90.101.225 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
Some Text here...
--- 10.90.101.226 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms

i used > grep -A1 'ping statistics' *.log and got the output below

--- 10.90.101.224 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
--- 10.90.101.225 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms
--- 10.90.101.226 ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2002ms

i wanted to get the output with the format below

--- 10.90.101.224 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
--- 10.90.101.225 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms
--- 10.90.101.226 ping statistics --- 3 packets transmitted, 3 received, 0% packet loss, time 2002ms

Answer 1

Use paste:

grep -A1 'ping statistics' *.log | paste - -

paste will per default add a tab between the lines, change this to a space with paste -d ' ' - -.

Answer 2

Using xargs

grep -A1 'ping statistics' *.log | xargs -n 15

-n max-args Use at most max-args arguments per command line.