OpenSSH Series 3: Mount with sshfs

scp usage

I don’t use it much, just to transfer a single file.

## Consider that I have a test.c in my local host
~ ❤  cat test.c
// #include<bits/stdc++.h>
#include <stdio.h>


int main()
{
    unsigned long long x = 1ull << 31;

    printf("%ld\n", x);
    printf("%X\n", x);

    unsigned long long y = 1ull << 32;

    printf("%ld\n", y);
    printf("%X\n", y);

    return 0;
}

## Copy file from local host to the remote server
~ ❤  scp test.c ali:/tmp/
test.c                                        100%  253     5.5KB/s   00:00


## Copy file from remote server to the local host
~ ❤  scp ali:/tmp/pass.txt ./
pass.txt                                      100%   26     0.5KB/s   00:00

Linux mount

When I use Linux, I can mount the disk to the file system, here is the command:

# 1. create an empty directory for mounting
~ ❤  mkdir mnt

# 2. mount a disk partition to the directory, and you can use `ls`, `cp`, `mv` in this directory
~ ❤  mount /dev/sda3 mnt/


# 3. When we don't need to read and write disk, just umount it
~ ❤  umount /dev/sda3

When you mount the partition, you could use df -Th to get a summary of available and used disk space usage of your disk.

~ ❤  df -Th
Filesystem     Type      Size  Used Avail Use% Mounted on
dev            devtmpfs  3.8G     0  3.8G   0% /dev
run            tmpfs     3.8G  1.5M  3.8G   1% /run
/dev/sda2      ext4       98G   52G   42G  56% /
/dev/sda3      ext4       77G   56G   18G  76% /home

sshfs

And there is also a tool called sshfs that allows us to mount a remote directory to the local file system.

sudo apt-get install sshfs

When I want to mount the /tmp directory in the remote server to local host, I can use these commands.

~ ❤  sshfs ali:/tmp  mnt

## check for the mount result
~ ❤  df -Th
Filesystem     Type        Size  Used Avail Use% Mounted on
...
ali:/tmp       fuse.sshfs   20G   11G  8.5G  55% /home/corvo/mnt

After the mount action, when you edit a file in local /home/corvo/mnt, just like editint it in the remote /tmp.