rsync运行良好的思想终端但不与PHP exec

Question

I have got this running fine in the terminal

rsync --info=progress2,stats source destion | stdbuf -oL awk 'BEGIN { RS="" } /%/ { print $2 }' > /temp/progress.txt 

but when I try and move it over to PHP exec i run into errors

echo exec('rsync --info=progress2,stats source destion | stdbuf -oL awk 'BEGIN { RS="" } /%/ { print $2 }' > /temp/progress.txt');

I receive this error

mod_fcgid: stderr: PHP Parse error:  syntax error, unexpected 'BEGIN' (T_STRING), expecting ',' or ')' in /home/laweb/public_html/phptest/copy.php on line 32

I have tried changing ' to " inside the exec(' ') command then I don't receive any output to the error log

Answer 1

You need to escape the single quotes within the string.

\'

So this line should fix it:

echo exec('rsync --info=progress2,stats source destion | stdbuf -oL awk \'BEGIN { RS="" } /%/ { print $2 }\' > /temp/progress.txt');

You are saying you get no output and the file does not copy, try shell_exec()

$output = shell_exec('rsync --info=progress2,stats source destion | stdbuf -oL awk \'BEGIN { RS="" } /%/ { print $2 }\' > /temp/progress.txt');

echo $output;

Now that i remember use escapeshellarg()

$command = escapeshellarg('rsync --info=progress2,stats source destion | stdbuf -oL awk \'BEGIN { RS="" } /%/ { print $2 }\' > /temp/progress.txt');
echo exec($command);