Windows 10 已经有WSL Cmder作为terminal 好看一些
ssh登录服务器
ssh_login.png
显示当前路径
bio01@VM-0-10-ubuntu:~$ pwd
/home/bio01
创建目录&显示目录列表
bio01@VM-0-10-ubuntu:~$ mkdir biosoft
bio01@VM-0-10-ubuntu:~$ mkdir project
bio01@VM-0-10-ubuntu:~$ mkdir tmp
bio01@VM-0-10-ubuntu:~$ mkdir src
bio01@VM-0-10-ubuntu:~$ ls
biosoft project src tmp
删除操作
bio01@VM-0-10-ubuntu:~$ mkdir rm_test
bio01@VM-0-10-ubuntu:~$ ls
biosoft project rm_test src tmp
bio01@VM-0-10-ubuntu:~$ cd rm_test/
bio01@VM-0-10-ubuntu:~/rm_test$ touch doodle.txt
bio01@VM-0-10-ubuntu:~/rm_test$ ls
doodle.txt
bio01@VM-0-10-ubuntu:~/rm_test$ vi doodle.txt
bio01@VM-0-10-ubuntu:~/rm_test$ mkdir chao
bio01@VM-0-10-ubuntu:~/rm_test$ cd chao
bio01@VM-0-10-ubuntu:~/rm_test/chao$ touch delete.txt
bio01@VM-0-10-ubuntu:~/rm_test/chao$ ls
delete.txt
bio01@VM-0-10-ubuntu:~/rm_test/chao$ cd ..
bio01@VM-0-10-ubuntu:~/rm_test$ ls
chao doodle.txt
bio01@VM-0-10-ubuntu:~/rm_test$ rm doodle.txt
bio01@VM-0-10-ubuntu:~/rm_test$ ls
chao
bio01@VM-0-10-ubuntu:~/rm_test$ rm -r chao
bio01@VM-0-10-ubuntu:~/rm_test$ ls
bio01@VM-0-10-ubuntu:~/rm_test$ cd ..
bio01@VM-0-10-ubuntu:~$ ls
biosoft project rm_test src tmp
bio01@VM-0-10-ubuntu:~$ rmdir rm_test/
bio01@VM-0-10-ubuntu:~$ ls
biosoft project src tmp
进入目录/返回之前目录
bio01@VM-0-10-ubuntu:~$ cd ~
bio01@VM-0-10-ubuntu:~$ cd
bio01@VM-0-10-ubuntu:~$ ls
biosoft project src tmp
bio01@VM-0-10-ubuntu:~$ cd tmp
bio01@VM-0-10-ubuntu:~/tmp$ ls
bio01@VM-0-10-ubuntu:~/tmp$ cd ~/src
bio01@VM-0-10-ubuntu:~/src$ cd -
/home/bio01/tmp
bio01@VM-0-10-ubuntu:~/tmp$ cd
bio01@VM-0-10-ubuntu:~$ pwd
/home/bio01
bio01@VM-0-10-ubuntu:~$
vi文本编辑
bio01@VM-0-10-ubuntu:~$ cd tmp
bio01@VM-0-10-ubuntu:~/tmp$ ls
bio01@VM-0-10-ubuntu:~/tmp$ cd ~/src
bio01@VM-0-10-ubuntu:~/src$ cd -
/home/bio01/tmp
bio01@VM-0-10-ubuntu:~/tmp$ cd
bio01@VM-0-10-ubuntu:~$ pwd
/home/bio01
bio01@VM-0-10-ubuntu:~$ cd tmp
bio01@VM-0-10-ubuntu:~/tmp$ ls
bio01@VM-0-10-ubuntu:~/tmp$ vi hello_world.txt
文本内容输出到屏幕
bio01@VM-0-10-ubuntu:~/tmp$ cat hello_world.txt
I'm not a newbie on linux.
But login with ssh again is great.
We should be careful with "rm".
I do learn a new trick:
"cd -" is capale to bring you back to the directory you visit.
Oops
I'm not that familiar with vi hot keys
bioinformatics planet is great
bioinformatics planet is great
bioinformatics planet is great
bio01@VM-0-10-ubuntu:~/tmp$ head hello_world.txt
I'm not a newbie on linux.
But login with ssh again is great.
We should be careful with "rm".
I do learn a new trick:
"cd -" is capale to bring you back to the directory you visit.
Oops
I'm not that familiar with vi hot keys
bioinformatics planet is great
bioinformatics planet is great
bioinformatics planet is great
bio01@VM-0-10-ubuntu:~/tmp$ head -n 3 hello_world.txt
I'm not a newbie on linux.
But login with ssh again is great.
We should be careful with "rm".
复制/移动文件
bio01@VM-0-10-ubuntu:~/tmp$ cp hello_world.txt new_file.txt
bio01@VM-0-10-ubuntu:~/tmp$ ls
hello_world.txt new_file.txt
bio01@VM-0-10-ubuntu:~/tmp$ mv hello_world.txt ~/home.txt
bio01@VM-0-10-ubuntu:~/tmp$ ls
new_file.txt
bio01@VM-0-10-ubuntu:~/tmp$ ls ~
biosoft home.txt project src tmp
练习探索
//longlist printing
bio01@VM-0-10-ubuntu:~/tmp$ ls -l
total 4
-rw-rw-r-- 1 bio01 bio01 318 Dec 17 23:29 new_file.txt
bio01@VM-0-10-ubuntu:~/tmp$ cd ~
bio01@VM-0-10-ubuntu:~$ ls -l
total 20
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 biosoft
-rw-rw-r-- 1 bio01 bio01 318 Dec 17 23:27 home.txt
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 project
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 src
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:29 tmp
bio01@VM-0-10-ubuntu:~$ ls -l -k
total 20
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 biosoft
-rw-rw-r-- 1 bio01 bio01 318 Dec 17 23:27 home.txt
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 project
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 src
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:29 tmp
// print as long list; size measured with k
bio01@VM-0-10-ubuntu:~$ ls -lk
total 20
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 biosoft
-rw-rw-r-- 1 bio01 bio01 318 Dec 17 23:27 home.txt
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 project
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:14 src
drwxrwxr-x 2 bio01 bio01 4096 Dec 17 23:29 tmp
// Linux system version
bio01@VM-0-10-ubuntu:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 18.04.1 LTS
Release: 18.04
Codename: bionic
// kernel version
bio01@VM-0-10-ubuntu:~$ uname -a
Linux VM-0-10-ubuntu 4.15.0-54-generic #58-Ubuntu SMP Mon Jun 24 10:55:24 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
//CPU information
bio01@VM-0-10-ubuntu:~$ cat /proc/cpuinfo
processor : 0
vendor_id : GenuineIntel
cpu family : 6
model : 94
model name : Intel(R) Xeon(R) Gold 61xx CPU
stepping : 3
microcode : 0x1
cpu MHz : 2500.000
cache size : 4096 KB
physical id : 0
siblings : 1
core id : 0
cpu cores : 1
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 13
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ss syscall nx pdpe1gb rdtscp lm constant_tsc rep_good nopl cpuid tsc_known_freq pni pclmulqdq ssse3 fma cx16 pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand hypervisor lahf_lm abm 3dnowprefetch invpcid_single pti fsgsbase bmi1 hle avx2 smep bmi2 erms invpcid rtm mpx rdseed adx smap xsaveopt xsavec xgetbv1 arat
bugs : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds
bogomips : 5000.00
clflush size : 64
cache_alignment : 64
address sizes : 46 bits physical, 48 bits virtual
power management:
//hardisk space
bio01@VM-0-10-ubuntu:~$ df -lm
Filesystem 1M-blocks Used Available Use% Mounted on
udev 885 1 885 1% /dev
tmpfs 184 6 179 3% /run
/dev/vda1 50332 8510 39677 18% /
tmpfs 917 1 917 1% /dev/shm
tmpfs 5 0 5 0% /run/lock
tmpfs 917 0 917 0% /sys/fs/cgroup
tmpfs 184 0 184 0% /run/user/1001
tmpfs 184 0 184 0% /run/user/1004
bio01@VM-0-10-ubuntu:~$ df -l
Filesystem 1K-blocks Used Available Use% Mounted on
udev 906224 4 906220 1% /dev
tmpfs 187740 5428 182312 3% /run
/dev/vda1 51539404 8713512 40628696 18% /
tmpfs 938680 24 938656 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 938680 0 938680 0% /sys/fs/cgroup
tmpfs 187736 0 187736 0% /run/user/1001
tmpfs 187736 0 187736 0% /run/user/1004
//memerory info
bio01@VM-0-10-ubuntu:~$ free -m
total used free shared buff/cache available
Mem: 1833 235 168 5 1429 1410
Swap: 0 0 0
bio01@VM-0-10-ubuntu:~$ ls
biosoft home.txt project src tmp
bio01@VM-0-10-ubuntu:~$ cd tmp
// create and remove hierarchy directories
bio01@VM-0-10-ubuntu:~/tmp$ mkdir -p /tmp/tmp1/tmp1.1
bio01@VM-0-10-ubuntu:~/tmp$ ls
new_file.txt
bio01@VM-0-10-ubuntu:~/tmp$ rm -r /tmp/tmp1
rm: descend into write-protected directory '/tmp/tmp1'? y
rm: remove write-protected directory '/tmp/tmp1/tmp1.1'? y
rm: cannot remove '/tmp/tmp1/tmp1.1': Permission denied
bio01@VM-0-10-ubuntu:~/tmp$ mkdir -p ~/tmp/tmp1/tmp1.1
bio01@VM-0-10-ubuntu:~/tmp$ ls -R
.:
new_file.txt tmp1
./tmp1:
tmp1.1
./tmp1/tmp1.1:
bio01@VM-0-10-ubuntu:~/tmp$ rm -r tmp1
bio01@VM-0-10-ubuntu:~/tmp$ ls
new_file.txt