Unix Process & System Management Commands
Essential Unix commands for monitoring and managing processes and system resources.
Unix process and system-management commands with a description, example and category: ps, top, htop, kill, nice, df, du, free, uname and lscpu.
Use it when
- You are inspecting running processes, resource use or system information.
- You need the command to stop or reprioritize a process.
Watch out for
- Output format and flags differ between Linux, BSD and macOS.
- kill -9 gives a process no chance to clean up; try SIGTERM first.
The data
Commands
10 rows
| Command | Description | Example | Category |
|---|---|---|---|
| ps | Display information about running processes | ps aux | Process Monitoring |
| top | Display real-time system summary and process list | top -o %MEM | Process Monitoring |
| htop | Interactive process viewer (enhanced top) | htop | Process Monitoring |
| kill | Send a signal to a process | kill -9 1234 | Process Control |
| nice | Run a program with modified scheduling priority | nice -n 10 ./script.sh | Process Control |
| df | Report filesystem disk space usage | df -h | System Monitoring |
| du | Estimate file and directory space usage | du -sh /home | System Monitoring |
| free | Display amount of free and used memory | free -h | System Monitoring |
| uname | Print system information | uname -a | System Information |
| lscpu | Display CPU architecture information | lscpu | System Information |
Fields
The shape of this dataset, read from the data itself: every column, its type and a real value. Agents can use this to plan a query without fetching the whole document.
| Section | Field | Type | Example |
|---|---|---|---|
| commands | command | string | ps |
| commands | description | string | Display information about running processes |
| commands | example | string | ps aux |
| commands | category | string | Process Monitoring |
Fetch the same bytes
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