The command du can be used to check the space (disk usage)
To see the disk space
du -sh *
To see the disk space and sort it
du -sh * | sort -nr
To see the disk space and see the top 10 files
du -sh * | sort -nr | head -n10
To see the disk space and see the top 10 files
du -sh * | sort -nr | tail -n10
Explanation:
du -s *: Summarizes disk usage of all files
sort -nr: To sort numerically, in reverse order
head -n10: Display first 10 results
tail -n10: Displays last 10 results
h : For human-readable output
To list the top 10 largest files from the current directory, use the following command:
du . | sort -nr | head -n10
du -h . | sort -nr | head -n10 (human readable output)
du, sort -nr and head -n10 serves the same purpose.
To check the diskspace with the control of number of recursive directories.
du -h --max-depth=0 | sort -hr (only current directory)
du -h --max-depth=1 | sort -hr (Current directory and one directory depth)
Check free memory in the cluster/supercomputer/linux system
Try:
free -g (to display the free disk size in GB)
You will get like this.
total used free shared buff/cache available
Mem: 7 6 0 0 1 0
Swap: 7 2 5
Options:
-b, --bytes show output in bytes
-k, --kilo show output in kilobytes
-m, --mega show output in megabytes
-g, --giga show output in gigabytes
--tera show output in terabytes
-h, --human show human-readable output
--si use powers of 1000 not 1024
-l, --lohi show detailed low and high memory statistics
-t, --total show total for RAM + swap
-s N, --seconds N repeat printing every N seconds
-c N, --count N repeat printing N times, then exit
-w, --wide wide output
--help display this help and exit
-V or --version output version information and exit
This is a series of post on "High Performance Computing (HPC): Everything you need to know before working in a Linux Cluster Environment. To see more post on this series, click here: Important Things to Know to Work in Linux Cluster
To check the diskspace with the control of number of recursive directories.
du -h --max-depth=0 | sort -hr (only current directory)
du -h --max-depth=1 | sort -hr (Current directory and one directory depth)
Check free memory in the cluster/supercomputer/linux system
Try:
free -g (to display the free disk size in GB)
You will get like this.
total used free shared buff/cache available
Mem: 7 6 0 0 1 0
Swap: 7 2 5
-b, --bytes show output in bytes
-k, --kilo show output in kilobytes
-m, --mega show output in megabytes
-g, --giga show output in gigabytes
--tera show output in terabytes
-h, --human show human-readable output
--si use powers of 1000 not 1024
-l, --lohi show detailed low and high memory statistics
-t, --total show total for RAM + swap
-s N, --seconds N repeat printing every N seconds
-c N, --count N repeat printing N times, then exit
-w, --wide wide output
--help display this help and exit
-V or --version output version information and exit
