Linux commands and Notes

Zip and Unzip 

If you need to decompress multiple files  you have to place the .zip in quotes.  unzip '.zip' 

Find Command

https://www.tecmint.com/35-practical-examples-of-linux-find-command/      find /etc -name ssh -type f  Above searches /etc for a  file named ssh  -type f     file  -type d     directory  -perm   for permissions eg. -perm 770  -exec    for executing a command against search results  -iname  for ignoring case eg. *.jpg will also find *.JPG  -user    find a user 

Find all the files whose name is tecmint.txt in a current working directory. 
# find . -name tecmint.txt 
 
To find all or single files called tecmint.txt under / root directory of owner root. 
# find / -user root -name tecmint.txt 
 
Find all directories whose name is Tecmint in / directory. 
# find / -type d -name Tecmint 
 
Find all the files whose permissions are 777. 
Find by size 
find . -size +2G 
find . -size –2G 

Grep grep –v    will invert your search    ++++++ 

Grep through all files and folders 

  grep -rni "string" *      where 

• r = recursive i.e, search subdirectories within the current directory 
• n = to print the line numbers to stdout 
• i = case insensitive search