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Old 04-29-2011, 10:45 AM   #1
BMan8577
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Question How can you create aliases with echoing text into the variable?


For example if you want to create an alias in Linux with a message echoed into the variable would the following command be; alias hello="(echo)"Hello." "? I'm trying to learn some environment variables and aliases.
 
Old 04-29-2011, 11:25 AM   #2
grail
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It is not really clear what you would hope to gain with what I think it is you are trying to do??
But to do what you ask:
Code:
alias hello='echo Hello'
Now when you type hello at the command prompt it will echo the word Hello, though not particularly useful in itself.
Normally aliases are used to help speed things up or perform a task with a single word, eg:
Code:
alias ll='ls -l'
alias df='df -h'
The first is to reduce the amount of typing but allow the original command to stay the same, namely ls.
The second you might perform if you decide you would always like to have the human readable form shown whenever you use the df command.
 
Old 04-29-2011, 12:24 PM   #3
BMan8577
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Is there a way I can place my created alias into a file such as: alias Hello > alias.hello? Would that be the command to place that into a file?

---------- Post added 04-29-11 at 01:24 PM ----------

Or would the correct command be: alias Hello='echo Hello' > alias.hello?
 
Old 04-29-2011, 12:38 PM   #4
TobiSGD
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The correct file to put your aliases into would be the configuration file of your shell. I think in most cases this should be ~/.bashrc.
Either edit it with the text-editor of your choice or add it with the echo command.
In any case make a backup of that file first.
The correct command to add an alias to your config file would be:
Code:
echo "alias hello = 'echo hello'" >> ~/.bashrc
Note that you have to use >>, not > for redirection, or you will delete the previous content of your ~/.bashrc.
 
Old 04-29-2011, 01:00 PM   #5
BMan8577
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Thanks I really appreciate it my credit goes to your successful answers. It worked thanks.
 
  


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