PFK*_*ang 4 unix bash scripting arguments lines
我必须编写此脚本来分隔在命令行中输入的参数。这是到目前为止的脚本:
# template.sh
function usage
{
echo "usage: $0 arguments ..."
if [ $# -eq 1 ]
then echo "ERROR: $1"
fi
}
# Script starts after this line.
case $1 in
*?)echo "My Name"
date
echo
echo $*
echo "*****"
;;
*)usage
;;
esac
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我需要得到的是,当我使用脚本时,它需要看起来像:
$ ./template.sh peter frederick chang
My Name
Sun May 17 11:28:46 PDT 2015
peter
*****
frederick
*****
chang
*****
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但相反,我得到:
$ ./template.sh peter frederick chang
My Name
Sun May 17 11:28:46 PDT 2015
peter frederick chang
*****
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使用printf而不是echo像这样 with"$@"在不同的行上打印参数:
# Script starts after this line.
case $1 in
*?)echo "My Name"
date
echo
printf "%s\n*****\n" "$@"
;;
*)usage
;;
esac
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这将打印:
My Name
Sun May 17 06:50:26 EDT 2015
peter
*****
frederick
*****
chang
*****
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