How to execute a test as part of bash string as executable command?-CodePudding

If I have a "file" that includes...

rm -rf /etc/motd
if [ -f /etc/motd]; then rm -rf /etc/motd; fi

And I try to do...

while read -r line 
do 
  command ${line}
  #$(${line})
  #eval ${line}
done< "file"

The 1st line runs of course. But the 2nd command fails with if : command not found. Which I understand the error because not an explicit command. So the question is how to execute a test as part of a string as bash script logic? I tried eval, and $(), i.e. subshells, but still errors out? Tripping over the 'if' test. I need a conditional test before the command/script code is executed in a one-liner. There has to be a way to do this, right?

CodePudding user response：

If your intention is to load and execute "file" from another script just do

source "file"

no need to loop over the lines.