Linux- calculates the total space occupied by all * .conf configuration files in the / etc/ directory

Calculate the total space occupied by all * .conf configuration files in the / etc/ directory

1. Create a script called confsize.sh with vi. The screenshot is as follows:

The contents are as follows:

#! / bin/bash

Sizenums=$ (ls-l $(find / etc/-type f-a-name * .conf) | awk'{print $5}')

Total=0

For i in $sizenums

Do

Total=$ (expr $total + $I)

Done

Echo "total size of conf files: $total bytes."

Where:

Ls-l $(find / etc/-type f-a-name * .conf) is used for statistics. Information for conf files

Ls-l $(find / etc/-type f-a-name * .conf) | awk'{print $5} 'lists the corresponding size of each file

two。 Give confsize.sh x permission and execute a script to verify the effect.

Check the number of files in the / opt directory of shell logged in with bash and list the specific values and corresponding user accounts

1. Create a script named shell.sh with vi. The screenshot is as follows:

The contents are as follows:

#! / bin/bash

DIR= "/ opt/"

Users=$ (grep "bash$" / etc/passwd | awk-F:'{print $1}')

For username in $users

Do

Num=$ (find $DIR-user $username | wc-l)

Echo "$username have $num files."

Done

2. Temporarily create some test files in the / opt directory to facilitate verification:

3. Add x permissions to the script shell.sh

4. Execute the script and view the information after execution

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