Variables on set-hostname and mv command in shell script

serverstackqns

8/8/23, 6:21 AM

I have the below script in Shell:

read n
for ((i=1;i<=$n;i++))
do
echo "Connecting to $publicip"
ssh -i ./key.txt root@$publicip 'hostnamectl set-hostname autotest$i.domain.com && mv /etc/letsencrypt/live/autotest.domain.com /etc/letsencrypt/live/autotest$i.domain.com && reboot'
done

mv command makes use of a variable from the above commands. But it doesn't seem to be working. What I get an error is mv: cannot move '/etc/letsencrypt/live/autotest.domain.com' to a subdirectory of itself, '/etc/letsencrypt/live/autotest.domain.com/autotest.domain.com' Even set hostname also didnt seem to work (especially with variables), when I checked the other server to see if hostname is changed. Tried many things around variable like adding "" and {} etc, but nothing worked.

Can someone help me on this regard.

0 + 0

linux

shell

hostname

shell-scripting

Score:1

Server

Tomek

8/8/23, 7:18 AM

Shell variables are NOT expanded in single-quoted ' text. Use double quotes " for strings with shell variables.

0 + 0

serverstackqns

8/8/23, 7:33 AM

Commenting with the right answer: ssh -i ./key.txt root@$publicip "hostnamectl set-hostname autotest$i.domain.com && mv /etc/letsencrypt/live/autotest.domain.com /etc/letsencrypt/live/autotest$i.domain.com && reboot"

Elon Musk

I sit in a Tesla and translated this thread with Ai:

EN: Variables on set-hostname and mv command in shell script

TH: ตัวแปรในคำสั่ง set-hostname และ mv ในเชลล์สคริปต์

RO: Variabile pe set-hostname și comanda mv în scriptul shell

RU: Переменные в команде set-hostname и mv в сценарии оболочки

VI: Các biến trên lệnh set-hostname và mv trong shell script

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