48 lines
1.2 KiB
Bash
48 lines
1.2 KiB
Bash
|
# ======================================================================
|
||
|
|
#
|
||
|
|
# @link http://wuhrr.wordpress.com/2010/01/13/adding-confirmation-to-bash/#comment-3540
|
||
|
|
#
|
||
|
|
# Function: confirm
|
||
|
|
# Asks the user to confirm an action, If the user does not answer yes,
|
||
|
|
# then the script will immediately exit.
|
||
|
|
#
|
||
|
|
# Parameters:
|
||
|
|
# $@ - The confirmation message
|
||
|
|
#
|
||
|
|
# Examples:
|
||
|
|
# > # Example 1
|
||
|
|
# > # The preferred way to use confirm
|
||
|
|
# > confirm Delete file1? && echo rm file1
|
||
|
|
# >
|
||
|
|
# > # Example 2
|
||
|
|
# > # Use the $? variable to examine confirm's return value
|
||
|
|
# > confirm Delete file2?
|
||
|
|
# > if [ $? -eq 0 ]
|
||
|
|
# > then
|
||
|
|
# > echo Another file deleted
|
||
|
|
# > fi
|
||
|
|
# >
|
||
|
|
# > # Example 3
|
||
|
|
# > # Tell bash to exit right away if any command returns a non-zero code
|
||
|
|
# > set -o errexit
|
||
|
|
# > confirm Do you want to run the rest of the script?
|
||
|
|
# > echo Here is the rest of the script
|
||
|
|
#
|
||
|
|
# ======================================================================
|
||
|
|
|
||
|
|
function confirm()
|
||
|
|
{
|
||
|
|
echo -n "$@ "
|
||
|
|
read -e answer
|
||
|
|
for response in y Y yes YES Yes Sure sure SURE OK ok Ok
|
||
|
|
do
|
||
|
|
if [ "_$answer" == "_$response" ]
|
||
|
|
then
|
||
|
|
return 0
|
||
|
|
fi
|
||
|
|
done
|
||
|
|
|
||
|
|
# Any answer other than the list above is considered a "no" answer
|
||
|
|
return 1
|
||
|
|
}
|