Linuxストレージ、メモリの表示、およびメモリの消去

4653 ワード

ストレージ容量の表示:
zds@ubuntu ~ $ df -hl
                           %    
udev            972M     0  972M    0% /dev
tmpfs           199M  6.3M  192M    4% /run
/dev/sda1        23G  5.3G   17G   25% /
tmpfs           992M  212K  991M    1% /dev/shm
tmpfs           5.0M  4.0K  5.0M    1% /run/lock
tmpfs           992M     0  992M    0% /sys/fs/cgroup
tmpfs           199M   60K  199M    1% /run/user/1000
zds@ubuntu ~ $ 

メモリの表示:
zds@ubuntu ~ $ free -m   #   Mb      
              total        used        free      shared  buff/cache   available
#     
Mem:           2990        1528         383          49        1078        1217
#     
Swap:          2044           0        2044
zds@ubuntu ~ $ top


top - 23:43:07 up 32 min,  1 user,  load average: 0.17, 0.36, 0.34
Tasks: 230 total,   1 running, 229 sleeping,   0 stopped,   0 zombie
%Cpu(s): 12.9 us,  5.6 sy,  0.0 ni, 81.5 id,  0.0 wa,  0.0 hi,  0.0 si,  0.0 st
KiB Mem :  2029876 total,   148224 free,   998788 used,   882864 buff/cache
KiB Swap:  2094076 total,  2087304 free,     6772 used.   819128 avail Mem 

   PID        PR      VIRT           
       USER                    RES           
                     NI              SHR           

   PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
   978 root      20   0  356740  84104  37752 S  8.9  4.1   0:19.39 Xorg    
  1909 zds       20   0 1023828 118576  80360 S  4.6  5.8   0:18.36 compiz       
  2439 zds       20   0  630364  52556  42052 S  4.3  2.6   0:08.29 gnome-terminal-   
  1945 zds       20   0  633568  35384  28860 S  0.7  1.7   0:10.46 sogou-qimpanel- 
     7 root      20   0       0      0      0 S  0.3  0.0   0:01.94 rcu_sched   
   845 root      20   0  187344   9684   8508 S  0.3  0.5   0:03.35 vmtoolsd  
  1631 zds       20   0   43736   4216   2924 S  0.3  0.2   0:01.82 dbus-daemon 
  1795 zds       20   0  564648  29760  24496 S  0.3  1.5   0:01.08 unity-panel-ser
  1958 zds       20   0 1026996  95708  27980 S  0.3  4.7   0:07.03 gnome-software
  1966 zds       20   0  496776  28904  25224 S  0.3  1.4   0:03.52 vmtoolsd   
  7336 zds       20   0   43652   3948   3340 R  0.3  0.2   0:01.25 top  
     1 root      20   0  119836   5652   4024 S  0.0  0.3   0:03.27 systemd 
     2 root      20   0       0      0      0 S  0.0  0.0   0:00.00 kthreadd 
     3 root      20   0       0      0      0 S  0.0  0.0   0:00.52 ksoftirqd/0
     5 root       0 -20       0      0      0 S  0.0  0.0   0:00.00 kworker/0:0H 
     8 root      20   0       0      0      0 S  0.0  0.0   0:00.00 rcu_bh
     9 root      rt   0       0      0      0 S  0.0  0.0   0:00.00 migration/0
    10 root      rt   0       0      0      0 S  0.0  0.0   0:00.01 watchdog/0
    11 root      20   0       0      0      0 S  0.0  0.0   0:00.00 kdevtmpfs 
    12 root       0 -20       0      0      0 S  0.0  0.0   0:00.00 netns 
    13 root       0 -20       0      0      0 S  0.0  0.0   0:00.00 perf 
    14 root      20   0       0      0      0 S  0.0  0.0   0:00.00 khungtaskd  

ストレージスペースのクリーンアップ:
zds@ubuntu ~ $ sudo apt autoclean    #       
         ...   
                    
        ...          
Del linux-firmware 1.157.15 [45.5 MB]
zds@ubuntu ~ $ sudo apt autoremove   #               
         ...   
                    
        ...          
    0     ,     0     ,    0      ...

余分なカーネルを削除するには:
#       
zds@ubuntu / $ dpkg --get-selections | grep linux
console-setup-linux                     install
libselinux1:amd64                       install
linux-base                              install
linux-firmware                          install
linux-generic                           install
linux-headers-4.4.0-112                 install
linux-headers-4.4.0-112-generic         install
linux-headers-generic                   install
linux-image-4.4.0-104-generic           deinstall  #         
linux-image-4.4.0-109-generic           install    #         
linux-image-4.4.0-112-generic           install
linux-image-4.4.0-98-generic            deinstall
linux-image-extra-4.4.0-101-generic     deinstall
linux-image-extra-4.4.0-104-generic     deinstall
     ... ...

#       
zds@ubuntu / $ sudo apt purge linux-image-4.4.0-104-generic ...

システム情報の表示:
#      /      / CPU   
zds@ubuntu:~$ uname -a
Linux ubuntu 4.13.0-36-generic #40~16.04.1-Ubuntu SMP Fri Feb 16 23:25:58 UTC 2018 ...

#       
zds@ubuntu:~$ cat /etc/issue
Ubuntu 16.04.4 LTS 
\l # zds@ubuntu:~$ env | grep FLASK FLASK_DEBUG=1