Linux implements no message prompt when using cp command

By default, when cp overwrites, no matter what parameters -f or the like are added, it will still prompt whether to overwrite.

The reason is: the server will add aliases by default alias cp=’cp -i’. When you execute cp, cp –i is actually executed.

[root@ltt01 ~]# alias
alias cp='cp -i'
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 mv='mv -i'
alias rm='rm -i'
alias which='alias | /usr/bin/which --tty-only --read-alias --show-dot --show-tilde'

cp cancels the prompt information and directly overwrites it. The user does not need to hit y to interact, which is very important when the script is executed.

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The following are two ways to solve this problem.

Method 1: Disable aliases

[root@ltt01 ~]# vi ~/.bashrc

Add "#" before alias cp='cp -i' to comment out this OK, :wq! Save and exit, then log in again.

Method 2: Add \ before cp

[root@ltt01 ~]# \cp 1.txt /back/1.txt 
[root@ltt01 ~]#

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