Steps to remove broken soft links after upgrading to ZCS v8.7.x

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Problem:

After upgrading from v8.6 or older versions to v8.7.x there are multiple broken soft links of third-party tools remains in "/opt/zimbra/".

Solution:

From the starting of ZCS v8.7.x all third-party tools are moved to directory "/opt/zimbra/common/", so we can remove broken directory links from "/opt/zimbra/".

Here are the steps to get list of broken soft links and steps and then remove manually.

1). Command to get broken soft link list.

find /opt/zimbra/ -type l ! -exec test -e {} \; -print 
OR 
find -L /opt/zimbra/ -type l 
OR 
find /opt/zimbra/ -type l | xargs file  | grep "broken symbolic link"   

Example:

Output of above command will like the following entries.

root@ztalk:~# find /opt/zimbra/ -type l | xargs file  | grep "broken symbolic link"

/opt/zimbra/cyrus-sasl:                             broken symbolic link to `/opt/zimbra/cyrus-sasl-2.1.26.2z'
/opt/zimbra/zimbramon/rrdtool:                      broken symbolic link to `/opt/zimbra/zimbramon/rrdtool-1.2.30'
/opt/zimbra/mariadb:                                broken symbolic link to `/opt/zimbra/mariadb-10.0.15'
/opt/zimbra/opendkim:                               broken symbolic link to `/opt/zimbra/opendkim-2.9.2'
/opt/zimbra/dspam:                                  broken symbolic link to `/opt/zimbra/dspam-3.10.2'
/opt/zimbra/aspell:                                 broken symbolic link to `/opt/zimbra/aspell-0.60.6.1'
/opt/zimbra/mta/mariadb:                            broken symbolic link to `/opt/zimbra/mta/mariadb-10.0.15'
/opt/zimbra/mta/mysql:                              broken symbolic link to `/opt/zimbra/mta/mariadb-10.0.15'
/opt/zimbra/libtool:                                broken symbolic link to `/opt/zimbra/libtool-2.2.6b'
/opt/zimbra/unbound:                                broken symbolic link to `/opt/zimbra/unbound-1.4.22'
/opt/zimbra/bdb:                                    broken symbolic link to `/opt/zimbra/bdb-5.2.36'
/opt/zimbra/httpd:                                  broken symbolic link to `/opt/zimbra/httpd-2.4.10'
/opt/zimbra/memcached:                              broken symbolic link to `/opt/zimbra/memcached-1.4.17'
/opt/zimbra/tcmalloc:                               broken symbolic link to `/opt/zimbra/tcmalloc-2.2'
/opt/zimbra/rsync:                                  broken symbolic link to `/opt/zimbra/rsync-3.1.1'
/opt/zimbra/altermime:                              broken symbolic link to `/opt/zimbra/altermime-0.3-20100505'
/opt/zimbra/zeromq:                                 broken symbolic link to `/opt/zimbra/zeromq-3.2.3'
/opt/zimbra/nginx:                                  broken symbolic link to `/opt/zimbra/nginx-1.2.0-zimbra'
/opt/zimbra/amavisd:                                broken symbolic link to `/opt/zimbra/amavisd-new-2.9.0'
/opt/zimbra/openldap:                               broken symbolic link to `/opt/zimbra/openldap-2.4.39.2z'
/opt/zimbra/mysql:                                  broken symbolic link to `/opt/zimbra/mariadb-10.0.15'
/opt/zimbra/curl:                                   broken symbolic link to `/opt/zimbra/curl-7.38.0'
/opt/zimbra/pflogsumm:                              broken symbolic link to `/opt/zimbra/pflogsumm-1.1.5'
/opt/zimbra/clamav:                                 broken symbolic link to `/opt/zimbra/clamav-0.98.4'
/opt/zimbra/heimdal:                                broken symbolic link to `/opt/zimbra/heimdal-1.5.2'
/opt/zimbra/openssl:                                broken symbolic link to `/opt/zimbra/openssl-1.0.1j'
/opt/zimbra/cbpolicyd:                              broken symbolic link to `/opt/zimbra/cbpolicyd-2.1.0-beta'

2). Command to remove broken soft links.

find /opt/zimbra/ -type l -exec test ! -e {} \; -delete   

Internal(private) bug for this - https://bugzilla.zimbra.com/show_bug.cgi?id=105953

Submitted by: Heera Singh Koranga