Linux exercises-shell Script programming basics (in construction)

1, write script/root/bin/systeminfo.sh, display the current host system information, including hostname, IPV4 address, operating system version, kernel version, CPU model, memory size, hard disk size

2, scripting/root/bin/backup.sh, can be implemented daily/etc/directory backup to/root/etcyyyy-mm-dd

3. Write script/root/bin/disk.sh, showing the maximum space utilization value in the current hard disk partition

4. Write Script/root/bin/links.sh, show the IPV4 address and connection number of each remote host connecting to this host, and sort by the number of connections from large to small

5. Write script/root/bin/sumid.sh, calculate the sum of the ID of the 10th user and the 20th user in the/etc/passwd file

6, write the script/root/bin/sumspace.sh, pass two file path as parameters to the script, calculate the sum of all the blank lines in the two files

7, Scripting/root/bin/sumfile.sh, Statistics/etc,/var,/usr directory total number of sub-directories and files

Linux exercises-shell Script programming basics (in construction)