Difference between revisions of "Process identifier (PID)"

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Line 13: Line 13:
 
== Related terms ==
 
== Related terms ==
 
* <code>[[namespace]]</code>
 
* <code>[[namespace]]</code>
[[/proc/$PID]]/[[cmdline]]
+
* <code>[[/proc/$PID]]/[[cmdline]]</code>
/proc/$pid/fd
+
* <code>/proc/$pid/fd</code>
 
 
 
* <code>[[pwdx]]</code>
 
* <code>[[pwdx]]</code>
 
* <code>SELECT [[pg_cancel_backend]](__[[pid]]__);</code>
 
* <code>SELECT [[pg_cancel_backend]](__[[pid]]__);</code>

Latest revision as of 16:03, 30 March 2023

wikipedia:Process identifier

Apr 08 08:44:48 SERVER systemd[1]: nginx.service: Failed to parse PID from file /run/nginx.pid: Invalid argument

In WSL

System has not been booted with systemd as init system (PID 1). Can't operate.
Failed to connect to bus: Host is down

Scripts[edit]

#!/bin/bash

if [ $# -eq 0 ]
then
    echo "Usage: $0 <process PID>"
    echo "Checks if a process is running by its PID."
    exit 1
fi

# Get the PID of the process to check from the command line argument
process_pid=$1

# Check if the process is running
if ps -p $process_pid > /dev/null
then
    echo "Process with PID $process_pid is running."
else
    echo "Process with PID $process_pid is not running. Running tput bel..."
    while true; do tput bel; sleep 1; done
fi


Related terms[edit]

See also[edit]

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