df and find command

 disk free commands:-

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#df  ---> display all filesystem info in blocks

#df -a  --> display all mounted filesystem info along with dummy filesystem

#df -h  --> display all filesystem info in human readable language

#df -k  --> display all FS info in KB's

#df -m    --> display all fs info in MB's

#df -T  --> display all FS info with its Filesystem type

#df -Th  ---> display FS info with its type in human readable language

find commands:-

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#find   .     -name   <filename>    --> to search for  a file in my PWD

                 

#find   /     -name   <filename>    --> to search for a file in / dir.

#find  /   -iname <filename>   --> to search for a file with ignoring cases

ex: #find / -iname  Zafar

#find /   -type f  <filename>   --> searching  a file with specific name

                     

#find / -type d  <dir name>   --> serach a dir with specific name

#find / -type f  -perm  644    ---> to search for a file with perm 644

#find / -type f -perm 644 | wc  -l   --> to have  a count of file with this perm 

#find / -type d  -perm  755   ---> to search for a dir with perm 755

#find / -type f -empty   ---> to search empty file in OS

#find / -type d -empty   --> to search empty dir in OS

#find / -user <username>  --> to search for the files/dir of the perticular user

ex: #find / -user zafar

#find / -type f -name "za*"   --> to search for all the files starting "za*"