Question

我一直在努力解决这个问题几个小时，并尝试了我在讨论区找到的一切。我无法切换到bin/sh，这应该是while [ $currentID -gt 0 ]。

问题在于while循环" 21: [: 2893: unexpected operator。错误为#!/bin/sh Menu_Option=0 echo "WELCOME" echo "--------------------------------------------------------------" while [ $Menu_Option -ne 4 ] do echo "select a menu option" echo "1- ancestry history" echo "2- who is online" echo "3- what process any user is running" echo "4- exit" read Menu_Option case $Menu_Option in 1) echo "THE ANCESTRY TREE FOR CURRENT PROCESS IS...." echo " " ps -ef > file1 currentID=$(awk '{if ($3 == '$PPID') print $2}' file1) while [ $currentID -gt 0 ] do Process_Name=$(awk '{if ($2 == $currentID) print $8 " " $9}' file1)

<script id="ddlTemplate" type="text/html">
    @Html.Partial("_DropDown", (SelectList)(Model.DeviceTypes))
</script>

Answer 1

我希望您需要以下内容：

#!/bin/sh

Menu_Option=0

echo "WELCOME"
echo "--------------------------------------------------------------"
while [ $Menu_Option -ne 4 ]
do
        echo "select a menu option"
        echo "1- ancestry history"
        echo "2- who is online"
        echo "3- what process any user is running"
        echo "4- exit"
        read -r Menu_Option
        case $Menu_Option in
        1)
                echo "THE ANCESTRY TREE FOR CURRENT PROCESS IS...."
                echo " "
                ps -ef > file1
                currentID=$(awk '{if ($3 == '$PPID') print $2}' file1)
                while [ "$currentID" -gt 0 ]
                do
                        Process_Name=$(awk '{if ($2 == '"$currentID"') print $8 "  " $9}'     file1)
                        echo "$Process_Name"
                        currentID=$(awk '{if ($3 == '"$currentID"') print $2}' file1)
                        if [ "$currentID" = "" ]
                        then
                                currentID=-1;
                        fi
                done
                echo ""
        esac
done

Shell脚本意外操作员

1 个答案: