Systemctl / Send Sighup Main Process
Send Sighup Main Process
Systemctl command syntax to send sighup main process. Copyable examples, output expectations, and common mistakes.
$
Terminal systemctl kill -s SIGHUP --kill-whom main <unit> systemctl kill -s SIGHUP --kill-whom main <unit> #!/bin/bash
# Send Sighup Main Process
systemctl kill {{[-s|--signal]}} SIGHUP --kill-whom main {{unit}} import subprocess
# Send Sighup Main Process
# Make sure to replace <placeholders> with actual values
def run_command():
cmd = [
"systemctl",
"kill",
"-s",
"SIGHUP",
"--kill-whom",
"main",
"<unit>"
]
try:
print(f"Executing: {' '.join(cmd)}")
subprocess.run(cmd, check=True)
except subprocess.CalledProcessError as e:
print(f"Error: {e}")
except FileNotFoundError:
print("Error: systemctl not found. Please install it first.")
if __name__ == "__main__":
run_command() Command Breakdown
What each part is doing
-
systemctl - Base Command
- The executable that performs this operation. Here it runs Systemctl before the shell applies any redirect operators.
-
-s - s| signal
- The value supplied for s| signal.
-
<unit> - unit
- The value supplied for unit.
-
-s - Command Option
- Tool-specific option used by this command invocation.
-
--kill-whom - Command Option
- Tool-specific option used by this command invocation.
Alternative Approaches
Comparable commands in other tools
Alternative system operations tools for the same job.
Killall / List Available Signals
killall -l Bitcoind / Start Bitcoin Core Daemon Specific Network bitcoind -chain=<main|test|signet|regtest> Trap / Execute Command On Signal trap 'echo "Caught signal <SIGHUP>"' <HUP> Dotenvx / Set Environment Variable Without Encryption dotenvx set <key> <value> --plain Kill / Terminate Program Default Signal kill <process_id>