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Linux Commands

  1. List Files & Directories 
ls 
ls -l 
ls -A 
ls -A -l
  1. Create Files 
touch file.txt
  1. Copy Files 
cp file.txt new-file.txt
  1. Rename Files 
mv file.txt FILE.txt
  1. Create Directories
mkdir demo
  1. Copy Directory 
cp -r dir1 dir2
  1. Move files from one directory to another
mv file dir
  1. Remove Directory 
rm -rf demo
  1. List Content 
cat file
  1. View top and end lines 
head file 
head -n 3 file 
tail file 
tail -n 3 file
  1. Search for a word and print the lines 
grep word file-name
  1. Filter with colum 
awk -F , '{print $1}' file.csv

  1. Editor (vim)

  2. Find the files 

find / -name "passwd"
  1. Browse and Download 
curl -L google.com 
curl -o file.zip http://domain.com/file.zip 
curl -O http://domain.com/file.zip
  1. Extract files 
tar -xf sample.tar.gz 
unzip file.zip
  1. Check process running 
ps -ef 
ps -ef | grep nginx
  1. User Management 
useradd demo
  1. Package Management 
yum install nginx -y 
yum list all | grep nginx
  1. Service Management 
systemctl start nginx 
systemctl enable nginx 
systemclt restart nginx
  1. Permissiong Management 
chmod u+x file.txt 
chown demo:demo file.txt 
chown demo:demo dir1 -R