base64

remove-interface.sh

 #!/bin/bash
 INTERFACE=$1
+COMMAND="flush interface ${INTERFACE}\nquit"
+COMMAND_BASE64=$(echo "$COMMAND" | base64 -w 0)
 
 cd ansible
-ansible wg -m shell -a "echo -e \"flush interface ${INTERFACE}\\nquit\" | nc ::1 33123"
+ansible wg -m shell -a "echo "$COMMAND_BASE64" | base64 --decode | nc ::1 33123"
 ansible wg -m systemd -b -a "name=wg-quick@${INTERFACE} state=stopped enabled=false"
 cd ..