在bash脚本中读取默认配置文件

Posted 2021-02-26

deftwitlogrc="~/.twitlog.rc"
 
#
# Parse command line
#
 
me=`basename $0 .sh`
usage="Usage: $me [-c config-file] <message>  

NOTE: config-file defaults to $deftwitlogrc"
 
while getopts ":c:" options; do
  case $options in
    c ) twitlogrc=$OPTARG;;
    h ) echo -e $usage
        exit 0;;
    ? ) echo -e $usage
         exit 1;;
    * ) echo -e $usage
          exit 1;;
  esac
done  
 
shift $((OPTIND - 1))
 
#
# Try and read config file
#
if [ -z "$twitlogrc" ]
then
        source ${HOME}/.twitlog.rc
else
        source $twitlogrc
fi
 
if [ $? -ne 0 ]
then
        echo "Cannot open config file"
        echo
        echo -e $usage
 
        exit 1
fi