28 lines
769 B
Markdown
28 lines
769 B
Markdown
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---
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favorited: true
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tags: [linux]
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title: System information
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created: '2021-10-27T22:55:40.432Z'
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modified: '2021-12-26T15:51:15.496Z'
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---
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# System information
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### Basic user enumeration
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- `whoami` `hostname` - get username and hostname
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- `id` - get information which group ids current user belongs to
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- `groups $USER` - check groups
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- `last` - check users that logged in recently
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### Cpu, memory
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- `lscpu` - show cpu information
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- `free -h` - display memory usage
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- `uname -p` or `uname -m` - show system architecture
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- `uname -r` - see a running kernel
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- `lsb_release -a` or `cat /etc/*release` - see running distribution
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### Another useful tool `sysstat` package
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- `iostat` - show current io (disk usage, cpu usage)
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- `mpstat` - show current cpu usage (detailed)
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