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[Bash] Read History function & Read Arrowkeys

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# 1  
Old 12-07-2014
[Bash] Read History function & Read Arrowkeys
Hi.

How can I create a history function? (By "read" command or so)
&
How can I configure a read command so that the arrow keys are not displayed so funny? (^[[A)

Thanks in advance.
# 2  
Old 12-07-2014
Bash has an -e option to read to support READLINE functionality (emac/vi editing, history, etc)

So try:

Code:
read -e -p "Enter your name: " name

To add responses to the history use history -s <response>

Example:

Code:
# Clear history
history -c

while true
do
    read -e -p "Enter your name (QUIT when done):" name
    #Save name into history
    history -s "$name"
    [ "$name" = "QUIT" ] && break
    echo "Hello, $name"
done

This history can also be written out to a file (for later invocations of your script) with history -w <filename> and read back in from a file with history -r <filename>
Last edited by Chubler_XL; 12-07-2014 at 04:02 PM..
# 3  
Old 12-08-2014
How can I save it in your own history file?
# 4  
Old 12-08-2014
You can save the history to a file (say .username.history) with this command:

Code:
history -w $HOME/.username.hist

To read history back use:

Code:
history -r  $HOME/.username.hist



So our example username prompting script would do this:

Code:
HISTFILE=$HOME/.username.hist
# Clear history
history -c

# If previous history exists load it in now
[ -f "$HISTFILE" ] && history -r "$HISTFILE"

while true
do
    read -e -p "Enter your name (QUIT when done):" name
    #Put name into history
    history -s "$name"
    [ "$name" = "QUIT" ] && break
    echo "Hello, $name"
done

# Save history for next time we run script
history -w "$HISTFILE"

# 5  
Old 12-09-2014
Thanks Smilie
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