1.1 Copy files
Copy files: Copy 1.txt to the sbin directory under the root directory
cp +文件名(可带路径)+目标路径(带路径) 如:cp 1.txt ~/sbin/
1,2 Copy directory
Copy directory: Copy release to the root directory Under the nfs directory under the directory
(1). [cp] [-r] [Directory name (can have path)] [Target path (with path)] -r means copying all subdirectories under the directory and File
如:cp -r release ~/nfs/
(2).[cp] [Directory name/*] [Target path (with path)] /* indicates all files and directories in the directory * is a wildcard character
如: cp release/* ~/nfs/
scp is the abbreviation of secure copy, which is a command used to remotely copy files under Linux. A similar command is cp, but cp only copies locally and cannot cross servers, and scp transmission is encrypted.
When your server hard disk becomes a read-only system, use scp to help you move the files out.
2.1 Command format
scp [参数] [原路径] [目标路径]
2.2 Instructions
Copy from local server to remote server
2.2.1 Copy files:
$scp local_file remote_username@remote_ip:remote_folder $scp local_file remote_username@remote_ip:remote_file $scp local_file remote_ip:remote_folder $scp local_file remote_ip:remote_file
If the user name is specified, the user password needs to be entered after the command is executed;
If the user name is not specified, After the command is executed, you need to enter the user name and password;
2.2.2 Copy directory:
$scp -r local_folder remote_username@remote_ip:remote_folder $scp -r local_folder remote_ip:remote_folder
The first one specifies the user name, and the command is executed After that, you need to enter the user password;
The second one does not specify a user name, and you need to enter the user name and password after the command is executed;
3.1. Example 1: Copy files from the server to the local directory
$scp root@10.6.159.147:/opt/soft/demo.tar /opt/soft/
Instructions: From /opt/soft/ on the 10.6.159.147 machine Download the demo.tar file from the directory to the local /opt/soft/ directory
3.2. Example 2: Copy the folder from the server to the local
$scp -r root@10.6.159.147:/opt/soft/test /opt/soft/
Instructions: From the 10.6.159.147 machine Download the test directory from /opt/soft/ to the local /opt/soft/ directory.
3.3. Example 3: Upload local files to the specified directory on the remote server
$scp /opt/soft/demo.tar root@10.6.159.147:/opt/soft/scptest
Instructions: Copy the file demo.tar in the local opt/soft/ directory to the opt/ of the remote machine 10.6.159.147 soft/scptest directory
3.4, Example 4: Upload the local directory to the specified directory on the remote machine
$scp -r /opt/soft/test root@10.6.159.147:/opt/soft/scptest
Instructions: Upload the local directory/opt/soft/test to the remote machine 10.6.159.147/opt /soft/scptest directory
mv 文件名 目标文件夹路径
In When operating Linux, you may encounter some very long commands. This command is used frequently, and it will be very troublesome every time you enter it and execute it. It is convenient if you set a long command to a short alias.
Linux’s alias command can help us set aliases for long commands.
Execute the alias command on the Linux server and you will see several familiar commands. As follows.
[test@271ba307f4954c74955b28c8389bc648 ~]$ alias alias egrep='egrep --color=auto' alias fgrep='fgrep --color=auto' alias grep='grep --color=auto' alias l.='ls -d .* --color=auto' alias ll='ls -l --color=auto' alias ls='ls --color=auto' alias vi='vim' alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'
For example: the ll command is not a Linux command, ll is executed by setting an alias ls -l --color=auto.
2.1 alias Add alias syntax
alias The syntax for adding alias is: alias [alias]='real command'.
2.2 alias Steps to add an alias
As shown below, add the command alias svccdl to the current Linux user test in order to enter the log file path of the day. The steps are as follows.
Enter the current user's home path, execute vi .bashrc, and add the following line of text:
alias svccdl='cd /home/test/logs/`date +%Y-%m-%d`'
The edited .bashrc file content is as follows.
# .bashrc # Source global definitions if [ -f /etc/bashrc ]; then . /etc/bashrc fi alias svccdl='cd /home/test/logs/`date +%Y-%m-%d`' # Uncomment the following line if you don't like systemctl's auto-paging feature: # export SYSTEMD_PAGER= # User specific aliases and functions
Execute source .bashrc to make the alias permanent.
[test@271ba307f4954c74955b28c8389bc648 ~]$ source .bashrc
Use test
[test@271ba307f4954c74955b28c8389bc648 ~]$ svccdl [test@271ba307f4954c74955b28c8389bc648 2022-08-30]$ pwd /home/test/logs/2022-08-30
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