I want to display all the files that are modified after a specified date
the commands are
touch --date '2011-09-19 /home/ , find /home/
How i can execute this two commands in single exec statement.Thanks in advance
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5 Answers
You can use either a ; or a && to separate the comands. The ; runs both commands unconditionally. If the first one fails, the second one still runs. Using && makes the second command depend on the first. If the first command fails, the second will NOT run.
command1 ; command2 (run both uncondtionally)
command1 && command2 (run command2 only if command1 succeeds)
1 Comment
VishalParkash
Amazing!! spent so much efforts using Process but this one works like wonders :) Thank you
This is how I did it simultaneously encode thumbs, and then flv video..I need to generate 2 thumbs from avi file. After the thumbs I need to convert the same avi to flv or whatever. So, here is the code I normally used.
$command_one = "do whatever the script does best";
$command_two = "do whatever the script does second best";
//execute and redirect standard stream ..
@exec($command_one."&& ".$command_two.">/dev/null 1>/dev/null 2>/dev/null &");
You can also run array of commands with exec, if you want :)
foreach($crapatoids as $crap){
$command_name = $crap;
//exec the crap below
@exec ($command_name." >/dev/null 1>/dev/null 2>/dev/null &");
}
Comments
The semicolon separator allows you to run multiple commands on one line.
<?php
$output = shell_exec("touch --date '2011-09-19' /home/; find /home/");
echo "<pre>" . $output . "</pre>";
?>
Comments
Actually, my problem came from execution python file in a virtual environment of Python. Generally, Python website instructs us to go through command lines: create a virtual env --> activate it --> call Python file (e.g: python3 yourPyFile.py). However, when I was trying to adapt these steps through calling in php with exec() method, it didn't work. Finally, I found out you don't need to activate env at all, what you only need to use a python which already generated when you creating virtual env by path/to/virtual/env/bin/python3 yourPyFile.py.
