Linux常见错误

• 报错1

[root@localhost ~]# vim
-bash: vim: 未找到命令

• 安装vim

yum -y install vim*
 
# 查看是否安装成功
[root@hadoop01 hadoop]# rpm -qa |grep vim
vim-X11-7.4.629-8.el7_9.x86_64
vim-enhanced-7.4.629-8.el7_9.x86_64
vim-common-7.4.629-8.el7_9.x86_64
vim-minimal-7.4.629-8.el7_9.x86_64
vim-filesystem-7.4.629-8.el7_9.x86_64

• 报错2

[root@localhost software]# sh-keygen -t rsa
bash: sh-keygen: 未找到命令

• 安装

yum install openssh
 
# 查看是否安装成功
[root@localhost software]# rpm -qa|grep -E "openssh"
openssh-clients-7.4p1-23.el7_9.x86_64
openssh-7.4p1-23.el7_9.x86_64
openssh-server-7.4p1-23.el7_9.x86_64
 
# 安装完成后，仍然报错，需要关机重启

• 报错3

[root@master ~]# pip install scikit-learn -i http://mirrors.aliyun.com/pypi/simple/ --trusted-host mirrors.aliyun.com
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Requirement already satisfied: scikit-learn in /home/software/anaconda3/lib/python3.6/site-packages (0.19.1)
distributed 1.21.8 requires msgpack, which is not installed.
You are using pip version 10.0.1, however version 21.3,1 is available.
You should consider upgrading via the 'pip install --upgrade pip' command.

• 解决方案：离线安装

# 浏览器搜索，下载linux版的
https://mirrors.aliyun.com/pypi/simple/scikit-learn/
# 上传到服务器
pip install scikit_learn-0.22-cp37-cp37m-manylinux1_x86_64.whl
 
# tar.gz文件
# 上传到服务器，解压
tar -zxvf *.tar.gz
# 进入文件目录 
cd *
# 运行命令
python setup.py install
 
# 测试是否安装成功
# 进入python
[root@master ~]# python3
>>>import pymysql

• 报错4

CondaError: Failed to write to /home/software/anaconda3/pkgs/readline-8.1.2-h0f457ee_0.tar.bz2
  errno: 28
OSError(28, 'No space left on device')
OSError(28, 'No space left on device')

• 解决方案

# 查看空间使用情况
[root@master ~]# df -h
Filesystem               Size  Used Avail Use% Mounted on
devtmpfs                 475M     0  475M   0% /dev
tmpfs                    487M  4.0K  487M   1% /dev/shm
tmpfs                    487M  7.7M  479M   2% /run
tmpfs                    487M     0  487M   0% /sys/fs/cgroup
/dev/mapper/centos-root   17G   17G   20K 100% /
/dev/sda1               1014M  168M  847M  17% /boot
tmpfs                     98M     0   98M   0% /run/user/0
 
# 空间占用
[root@master software]# du -sh /home/* |grep G
7.3G	/home/software
 
# 删除一些不用的压缩包等

• 双击硬盘
  

• 碎片整理，扩展