function::pid2execname - Linux
Overview
The function::pid2execname
command returns the absolute path to the executable for a given process ID (PID). It is useful for obtaining detailed information about running processes, such as their actual executable name, location, and command line arguments.
Syntax
function::pid2execname PID
Parameter:
- PID: The process ID of the process whose executable path you want to determine.
Options/Flags
None.
Examples
Simple Usage:
Get the executable path for process ID 1234:
function::pid2execname 1234
/usr/bin/bash
Complex Usage:
Combine with other commands to extract specific information:
function::pid2execname 1234 | xargs basename
bash
Common Issues
- Ensure that the PID provided is valid and corresponds to a running process.
- Not all processes have an associated executable file, such as kernel threads. In these cases, the command may return an empty string.
Integration
- Use with
ps
to display process information, including executable paths:
ps -eo pid,comm,function::pid2execname
- Combine with
grep
to search for specific processes based on their executable names:
ps -ef | grep function::pid2execname | grep /usr/bin/python
Related Commands
ps
: Display process information.top
: Display real-time process information.pstree
: Display a tree of processes.