Retrieve disk usage on home dir & vmail with Bash Script-CodePudding

Here I am, new and wet behind the ears to Bash/Shell Scripting.

Basically I am needing to know how to utilize sed in this instance on one of two very basic scripts. The intention is to retrieve disk usage info based on username/domain name.

You might be asking why two of the same scripts?

Given I work with many username/domains, the default domain_usage will be be overwritten into to domain_usage_tmp as and when username/domain changes. I have tried using sed to substitute, which has not provided the intended results:

sed 's/username/x/g' 's/domain/x/g' /scripts/domain_usage_tmp

Provide me with knowledge and wisdom :-)

CodePudding user response：

Perhaps you forget to use the -i option:

man sed
...
       -i[SUFFIX], --in-place[=SUFFIX]

              edit files in place (makes backup if SUFFIX supplied)

sed -i 's/username/x/g' 's/domain/x/g' /scripts/domain_usage_tmp

CodePudding user response：

Thanks for the swift reply ramsay & jack_skellington

I've received stnd error:

sed: can't read s/domain/DOMAIN NAME HERE/g: No such file or directory

The domain directory does indeed exist btw, so I'm unsure why I've gotten the error.

@KamilCuk

#!/bin/bash #This script is intended to retrieve disk usage on home dir & vmail

#Retrieve home dir usage. du -hs /home/x/

du -hs /var/vmail/domain/

du -hs /home/x/*

du -hs /var/vmail/domain/*