Update Sed to work on linux

node.sh

@@ -84,18 +84,18 @@ if [ "$FRESH_START" = true ]; then
 	cp networks/$EL_CHAIN_ID/app.toml $BEACON_CONFIG_DIR/config/app.toml
 	cp networks/$EL_CHAIN_ID/config.toml $BEACON_CONFIG_DIR/config/config.toml
 
-
 	# Rename the moniker in config.toml to the one configured in this script
-	sed -i '' "s/^moniker = \".*\"/moniker = \"$MONIKER_NAME\"/" "$BEACON_CONFIG_DIR/config/config.toml";
+	sed -i.bak "s/^moniker = \".*\"/moniker = \"$MONIKER_NAME\"/" "$BEACON_CONFIG_DIR/config/config.toml" && rm -f "$BEACON_CONFIG_DIR/config/config.toml.bak"
 
-	sed -i '' "s|^jwt-secret-path = \".*\"|jwt-secret-path = \"$JWT_PATH\"|" "$BEACON_CONFIG_DIR/config/app.toml";
+	# Update the jwt-secret-path in app.toml
+	sed -i.bak "s|^jwt-secret-path = \".*\"|jwt-secret-path = \"$JWT_PATH\"|" "$BEACON_CONFIG_DIR/config/app.toml" && rm -f "$BEACON_CONFIG_DIR/config/app.toml.bak"
 
 	# Add the CL seeds to the config.toml
-	seeds=$(cat networks/$EL_CHAIN_ID/cl-seeds.txt | tail -n +2 | tr '\n' ',' | sed 's/,$//');
-	sed -i '' "s/^seeds = \".*\"/seeds = \"$seeds\"/" "$BEACON_CONFIG_DIR/config/config.toml";
+	seeds=$(cat networks/$EL_CHAIN_ID/cl-seeds.txt | tail -n +2 | tr '\n' ',' | sed 's/,$//')
+	sed -i.bak "s/^seeds = \".*\"/seeds = \"$seeds\"/" "$BEACON_CONFIG_DIR/config/config.toml" && rm -f "$BEACON_CONFIG_DIR/config/config.toml.bak"
 
-	# Comma separated list of nodes to keep persistent connections to
-	sed -i '' "s/^persistent_peers = \".*\"/persistent_peers = \"$seeds\"/" "$BEACON_CONFIG_DIR/config/config.toml";
+	# Comma-separated list of nodes to keep persistent connections to
+	sed -i.bak "s/^persistent_peers = \".*\"/persistent_peers = \"$seeds\"/" "$BEACON_CONFIG_DIR/config/config.toml" && rm -f "$BEACON_CONFIG_DIR/config/config.toml.bak"
 
 	# Create JWT token for auth between Consensus Client and Execution Client
 	$BEACOND_BINARY jwt generate -o $JWT_PATH;