Search symbolic link in a folder

find /folder -type l -exec ls -lad {} \;

Useful basic liux Command

Some basic UNIX command which helps in managing server

1. copy a directory
   cp -r dir1 /path/to/destination/dir
2. Extract tar.gz file
   tar xvfz archive_name.tar.gz
3. create a tar.gz file
   tar cvfz archive_name.tar.gz dirname/
4. Search file with file name
   find . -type f -name '*.php'

Linux command to see disk spaces

df -h

Linux folder size from command prompt

Best way to check folder size.

du -hs /var/www/
7.8G

If want to exclude any(upload here) folder then

du -hs --exclude=upload*
2G