I am working on an jail broken iphone app that calls a shell command. To read the output I redirect the output of the command to file. That is where my problem lies. When I attempt to do the redirect sh reports that the operation is not permitted.this is the exact output of gdb: sh: ./tmp/tmp.out: Operation not permitted Also I call my command using the system() function. thank you in advance
You might instead want to use NSTask which is built for these sorts of things.
Related
I am having a strange issue. I have written a script which is basically running a perl script in remote server using ssh.
This script is working fine but after completion of the above operation it will ask user to choose the next operation.
it is showing the options in the command prompt but while I am giving any input it is not showing in the screen even after hitting enter also it remain same.
I am not getting what is the exact issue, but it seems there is some issue with the ssh command because if I am commenting out the ssh command it is working fine.
OPERATION:
print "1: run the script in remote server \n2: Exit\n\nEnter your choice:";
my $input=<STDIN>;
chomp($input);
..........
sub run_script()
{
my $com="sshg3.exe server -q --user=user --password=pass -exec script >/dev/null";
system("$com");
goto OPERATION;
}
after completing this ssh script it is showing in screen:
1: run remote script
2: exit
Enter your choice:
but while I am giving any input it is not displaying in the screen until and unless I am exiting it using crtl C.
Please can anyone help what might be the issue here ?
One of the classic gotchas with ssh is this - that it normally runs interactively, and as such will attach STDIN by default.
This can result in STDIN being consumed by ssh rather than your script.
Try it with ssh -n instead.
You can redirect the output in command prompt if -n option is not available for you.
try this one it might work for you.
system("$com />null");
As per https://support.ssh.com/manuals/client-user/62/sshg3.html there is an option for redirecting input use --dev-null (*nix) or --null (Windows).
-n, --dev-null (Unix), -n, --null (Windows)
Redirects input from /dev/null (Unix) and from NUL (Windows).
I need a way to open a file in a Metro app from command line.
So far I've figured out how to start the app from command line without any third-party scripts
explorer shell:AppsFolder\Microsoft.Reader_8wekyb3d8bbwe!Microsoft.Reader
but I haven't been able to figure out how to include a file name yet.
Launching
explorer shell:AppsFolder\Microsoft.Reader_8wekyb3d8bbwe!Microsoft.Reader example.pdf
just opens up a default explorer window.
Any idea from Windows 8 experts on how to accomplish this without any third-party tools/cmdlets/etc.?
Note: In fact I'm using Windows 10 but I guess if there's a Windows 8 / 8.1 way to do it, it'll work for 10, too.
If you're still looking for the answer, the best way to open a file in a metro app is to use an execution string like a normal app protocol does. The execution string looks like this:
bingnews:[arguments, can be left blank.]
microsoftvideo:[arguments, can be left blank.]
netflix:[arguments, can be left blank.]
So, to start up netflix, it's as simple as typing in Start netflix: into the command line.
To find the execution string for an app, go here: Control Panel\Programs\Default Programs\Set Associations
More info and examples can be found here.
http://windowsitpro.com/windows-8/opening-windows-8-apps-command-prompt-or-script
http://www.itsjustwhatever.com/2012/10/28/launch-windows-8-metro-apps-from-a-desktop-shortcut-or-command-line/
PLEASE NOTE: To open an app WITHOUT A PROTOCOL (One not listed in the registry or under "Set Associations") use OP's method:
explorer shell:AppsFolder\[appuid]![appfullname]
The app UID is the folder name without the version number. For example,
4DF9E0F8.Netflix_2.11.0.8_x64__mcm4njqhnhss8
becomes
4DF9E0F8.Netflix_mcm4njqhnhss8
The app fullname is the [App author].[App name] For example, 4DF9E0F8.Netflix. 4DF9E0F8 is the author, and Netflix is the name.
Put it all together to get
explorer shell:AppsFolder\4DF9E0F8.Netflix_mcm4njqhnhss8!4DF9E0F8.Netflix
Store Apps can only be started by the shell. So try this:
explorer.exe shell:AppsFolder\Microsoft.WindowsAlarms_8wekyb3d8bbwe!App
Or from run (Win+R):
shell:AppsFolder\Microsoft.WindowsAlarms_8wekyb3d8bbwe!App
If the app is the default handler then you can just launch the file or protocol. There isn't a good in-box way to launch a file into a non-default handler from the command line.
Windows Store apps aren't designed to run from the command line and there isn't a straightforward way to launch them from the command line. Apps which handle specific files or protocols receive them through FileActivatedEventArgs or ProtocolActivatedEventArgs rather than command line arguments
You could write a launcher app which uses CLSID_ApplicationActivationManager's IApplicationActivationManager to ActivateForFile a specific app.
The best way I've found to pass command-line arguments to the executable targeted by the shell command is via the Windows start command.
Using your example, you would end up with this:
start "" shell:AppsFolder\Microsoft.Reader_8wekyb3d8bbwe!Microsoft.Reader example.pdf
I don't have Microsoft.Reader installed, so I can't test that. However, I can verify that this pattern works with Windows Terminal. In this case, I pass it a command-line argument to tell it which profile I want to open.
start "" shell:AppsFolder\Microsoft.WindowsTerminal_8wekyb3d8bbwe!App new-tab -p "GitBash"
The first argument to the start command here — the empty string — is just the title of the window.
You can also pair this with cmd /c, which I've found is necessary for some launcher applications, such as my personal favorite, SlickRun:
cmd /c start "" shell:AppsFolder\Microsoft.WindowsTerminal_8wekyb3d8bbwe!App new-tab -p "GitBash"
I have a blog post with more info on running Modern apps from the command line, which you might find helpful in constructing these ridiculously obtuse commands.
Not sure if it works on Windows 8, but on Windows 10 I use this:
cmd /C start <app-name>:
For example, to start Slack:
cmd /C start slack:
I'm beginning to write a simple Perl program on my Mac, and I understand that the first line needs to be the location of Perl itself, every example or tutorial I find tells me the first line should be:
"#!/usr/bin/perl"
However, with that there, I attempt to run the file under localhost and I get this error:
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, you#example.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Anyone have any idea why this is happening?
Thanks in advance, and let me know if any more information is needed!
P.S. if it helps, when I execute the command: "perl -v" it tells me
This is perl, v5.10.0 built for darwin-thread-multi-2level
(with 2 registered patches, see perl -V for more detail)
As Erik said, /usr/bin/perl is the standard location for Perl on OSX. You can also verify this by running which -a perl from terminal (this will list all instances of Perl on your path).
Can you run your script from the command-line, i.e. ./<myscript>.pl? It's possible that you haven't made the script executable.
#!/usr/bin/perl is the correct path for 10.6. If you're running from the webserver, your first line before any output should be a HTML header. You may have forgotten one?
#!/usr/bin/perl
use CGI;
print CGI->header('text/html');
print "hello world";
I need to build a test bench by sending appropriate inputs to an application. However,
once I launch the application, it takes control and does not return to the command
prompt (unless an exit command is executed from the application). In that case
is there any technique by which I can send a command to that application from the Perl
script and interpret the output from that application?
My operating system is Windows.
If it's a GUI application, take a look at the Win32::GuiTest module. It sends events to GUI applications - simulating user input.
For a command line application, I would normally recommend the Expect module. Unfortunately, Expect doesn't work under Windows.
If there is anyway to write or redirect the application output to a file, you can always open that file to process/interpret the output. If you are talking about a command-line application, it should be easy to redirect the terminal output to a file using the '>' and '>>' characters. It may not be as easy with a GUI app, though.
For executing a shell command I'm using system("ls"); command. Is there any way I can read the output?
You can't do this on the iPhone since there is no shell. On a standard POSIX system (like OS X on the desktop) you would either use popen, or set up a pipe between your app and the child process manually using fork, exec, and pipe.
If you actually want to list the contents of a directory, use NSFileManager.