Usefull Linux Cmds

Jul 23, 2018

Introduction

The following commands I found useful while working. This blog will be updated continuosly.

This commands syncs a folder in a server with your local directory

sshfs username@server-ip:/folder/path/in/the/server /local/path
e.g:
sshfs root@libvirt:/root/go/src/wirefilter.com/ .

If you finished, you can unmount the folder.

umount -f wirefilter.com

Instead of doing the long ssh copy procedure this command does it for you.

ssh-copy-id username@server-ip
ssh-copy-id [email protected]

Instead of remembring the username and ip address of every server, you can assign it an alias and ssh it with that alias.

open ssh config file:

vi ~/.ssh/config

add the following config:

host myserver
hostname 10.10.10.151
user msayed

then instead of doing :

ssh [email protected]

ssh myserver

This is also useful but I don’t know how :). I will read about it more.

open ssh config file:

vi ~/.ssh/config

add the following:

host *
    ForwardAgent yes

create file1 with size = 1024*10 bytes:

dd bs=1024 count=10 if=/dev/zero of=emtpy/file1
head -c 1000 < /dev/urandom > text1

creating patch for file1 and applying it:

diff file1 file2 > diff
patch file1 diff

file1 is now = file2