Question

I am trying to add a string to the end of a line using sed and regex.

I have the following string:

disable_functions = pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,

and im trying to add to the end of it the string:

exec,system,shell_exec,passthru,

My attempt is as follows:

sed -ie 's/disable_functions = .*[a-zA-z,]$/disable_functions = $1exec,system,shell_exec,passthru,/gI' /etc/php5/apache2/php.ini

It seems to just add $1 to the string disable_functions = $1exec,system,shell_exec,passthru,

Where am I going wrong?

Answer 1

Try that :

sed '/^disable_functions/s/$/exec,system,shell_exec,passthru,/' /etc/php5/apache2/php.ini

If the output seems OK, then add -i switch to modify the file.

$ here, mean end of line.