shell_lab:kill proc with name

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#!/bin/sh

kill_with_proc_name () {
    echo  "-----------------------------------------------------------------\n"
    echo "the name of proc you wish to kill : $1\n"
    echo  "-----------------------------------------------------------------\n"
    echo "all procs as follow:\n" 
    ps -axu  |awk '{print $2 , $11}' |grep $1 

    echo  "-----------------------------------------------------------------\n"
    #awk pid and proc name 
    pid=$(ps -axu  |awk '{print $2 , $11}' |grep $1|awk '{print $1}')
    echo "proc pid:$pid"
    echo  "-----------------------------------------------------------------\n"
    # read -p "Enter the row number of which you want(1,2,3...) line: "  proc_line_num
    # echo "kill $proc_line_num now......."
    # pid=$(ps -axu |grep $1 |grep -vE "$0|grep" |awk '{print $2}'|awk -v line="$proc_line_num" 'NR==line')
    # echo  "-----------------------------------------------------------------\n"

    echo "I will kill $pid now......."
    if [ -z $pid ]
    then 
        echo "return with reason: no proc name with $1"
        return 
    else
        kill $pid
    fi
}


#main() 
if [ -z $1 ]
then
    echo "[Error:] sorry \$1 is empty. \n please enter your proc name after './kill.sh'   "
    return
else
    # echo "\$1 is $1"
    kill_with_proc_name $1
    ps_info=$(ps -axu  |awk '{print $2 , $11}' |grep $1)
    if [ -z $ps_info ]
    then        
        echo "done!"
    fi
fi