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Some commands of Linux Back
1. If you want to checkout some versions of Linux OS
Linux version:
lsb_release -a
Kernel version:
uname -r
2. If you want to see the space size
# checkout the hard disk
df -h
# checkout the current directory
du -h --max-depth=1
3. If you want to check the info of the space size in the physical memory
# Total Mem
free | sed -n "2, 1p" | awk '{print int($2)}'
# Used
free | sed -n "3, 1p" | awk '{print int($3)}'
4. Dynamically check a file
tail -f file
5. Check device ID of some USB ports
lsusb
6. To connect some port of a specified IP address
telnet <IP addr> <port>
7. Commandes RTL-SDR
rtl_test -t
8. Statistic lines of a file
cat <input text> | wc -l
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