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  Linux Detailed instructions alias settings
  Add Date : 2017-08-31      
  When we use the long command using Linux, but also often want to use, always use an alias, here is a brief look at the alias alias

Instruction: alias
Setting command aliases

Syntax: # alias name = 'command line'

-p: Some alias (the only parameter) print appears
Without any arguments, it lists all current alias settings

# Alias cp = 'cp -i'
This can be used instead of cp cp -i, and cp -i This command is still valid

View alias:
It lists all current alias settings.
# Alias or # alias -p

View a specific command alias
# Alias cp

Alias perpetuate:
alias role only in the sign-operation is entered after the first alias, this change take effect only for the current Shell. If you re-open a Shell, or log in again, these alias will not work. Fortunately, linux is provided a method of permanent alias:
<1> To take effect automatically every time you sign on the alias, the alias plus put in / etc / profile or in ~ / .bashrc. Then # source ~ / .bashrc
<2> To allow every user to take effect aliases, put the alias applied to / etc / bashrc final surface, then # source / etc / bashrc

Reset Alias:
alias reset method when the first set of the same
# Alias cp = 'cp -i'

Delete an alias:
Format: unalias name

# Unalias cp
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