Command Name / Start X Application On New Screen
Start X Application On New Screen
Starts an X application on a new display screen with X11.
DISPLAY=:2 <command_name> DISPLAY=:2 <command_name> #!/bin/bash
# Start X Application On New Screen
DISPLAY=:2 {{command_name}} import subprocess
# Start X Application On New Screen
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"command_name",
"<command_name>"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: command_name not found. Please install it first.")
if __name__ == "__main__":
run_command() When To Use
When isolating X applications to avoid interference with the primary display.
Pro Tip
Ensure that the specified DISPLAY variable does not conflict with existing sessions.
Command Builder
Tune the command before you copy it
DISPLAY=:2 <command_name> Anatomy of Output
Understanding the result
Launching application on display ID :2 Application Launch Indicates the application is starting on the specified display.
Application started successfully on :2 Startup Confirmation Shows successful initiation of the X application.
Error: cannot connect to X server :1 Connection Error Indicates failure to connect to the intended X display.
Troubleshooting
Common pitfalls
No display specified
Solution: Ensure DISPLAY variable is set correctly before execution.
xterm: unable to open display :2
Solution: Check that display :2 is active and accessible.
Cannot connect to X server
Solution: Verify that the X server is running and reachable.
Command Breakdown
What each part is doing
-
DISPLAY=:2 - Base Command
- The executable that performs this operation. Here it runs Command Name before the shell applies any redirect operators.
-
<command_name> - command name
- The value supplied for command name.
Alternative Approaches
Comparable commands in other tools
Alternative containers tools for the same job.
exif -e -o <path/to/thumbnail.jpg> <path/to/image.jpg> Jpegtran / Crop Image Rectangular Region Linux jpegtran -crop <W>x<H> -outfile <path/to/output.jpg> <path/to/image.jpg> Jpegtran / Crop Image Starting At Point Linux jpegtran -crop <W>x<H>+<X>+<Y> <path/to/image.jpg> > <path/to/output.jpg> Virt Sparsify / Convert Image Format Linux virt-sparsify <path/to/image> --convert <qcow2|raw|vdi|...> <path/to/new_image> Scrun / Send Specific Signal To Container scrun kill <container_id> <SIGKILL>