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I am creating a bash script that installed VSFTPD / FTP. After the installation some configuration is required in the "/etc/vsftpd/vsftpd.conf" file.

This includes making sure the following lines are set to this:

anonymous_enable=NO
local_enable=YES
chroot_local_user=YES

What would be the best approach for scripting a way for these edits to be made post installation?

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I would go with sed –  Arkadiusz Drabczyk Nov 24 '14 at 16:04
    
Are those lines (with the same or different values) already in the default conf? That is, what are you changing from and to? –  jasonwryan Nov 24 '14 at 16:26
    
It can vary but that is the end result I need to get to. –  user3024130 Nov 24 '14 at 16:31
    
Note that not all versions of sed support sed -c, with gnu sed 4.2.2 I'm getting sed: invalid option -- 'c'. Also, if those keys are commented in the original file (or missing) the sed solution below will not give you the end result that you actually need. –  don_crissti Nov 24 '14 at 23:31

1 Answer 1

up vote 1 down vote accepted

I would use sed it's really powerfull, this bash file would change the values:

  #!/bin/bash

  path_to_conf="/path/to/vsftpd.conf"
  anonymous_=NEIN
  local_=JA
  chroot_=IDK

  sed -c -i "s/\("anonymous_enable" *= *\).*/\1$anonymous_/" $path_to_conf
  sed -c -i "s/\("local_enable" *= *\).*/\1$local_/" $path_to_conf
  sed -c -i "s/\("chroot_local_user" *= *\).*/\1$chroot_/" $path_to_conf

You could use a loop to get this done, if you have to change a lot of variables, but with only three keys it's nicer like this (in my opinion).

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