Thank you, now it works! I had to escape $src_running with a backslash, because it was handled as a variable, but now it works! :) Working code: 
/usr/bin/perl -ni -e 'if ( $_ =~ m{^#start /usr/sbin/xntpd} ) { print 
+"start /usr/sbin/xntpd \"\$src_running\" \"-x\"\n" } else {print}' /e
+tc/rc.tcpip

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In reply to Re^2: file line editor one-liner by repcsi
in thread file line editor one-liner by repcsi

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