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透過 zenity 驗證兩個時間值的 Bash 腳本不起作用

tag-icon • tag-icon bash zenity
透過 zenity 驗證兩個時間值的 Bash 腳本不起作用

我正在嘗試以名為 $input 的值的形式驗證程式傳遞的兩個時間值。一旦驗證，時間值將在 SQL 插入語句中使用。如果值超出範圍，我將無法使用 date 命令，因為我收到錯誤訊息。

必須將時間值傳遞到資料庫，例如 xx:xx，因此 08:20 不能作為 8:20 傳遞，並且必須在 00:00 到 23:59 的有效範圍內。我已經分割了 $input 並且透過 awk 匯出了兩個時間值 $startt 和 $finisht 。 $finisht 必須大於 $startt。

如果不滿足前面的條件，我想打開帶有兩個時間字段的 Zenity 輸入框，直到輸入正確的條件。

到目前為止，我有以下 Bash 腳本，但它不起作用。有人可以幫忙嗎？

#!/bin/bash

input=30:20,12:45

startt=$(echo $input | awk -F, -v  OFS=, '{print $1}')
finisht=$(echo $input | awk -F, -v  OFS=, '{print $2}')

st=`date --date="$startt" +%s`
ft=`date --date="$finisht" +%s`

let "tDiff=$ft-$st" 

if [[ ! $startt =~ [0-1][0-9]:[0-5][0-9] ]] && [[ ! $startt =~ [0-2][0-3]:[0-5][0-9] ]] || [[ ! $finisht =~ [0-1][0-9]:[0-5][0-9] ]] && [[ ! $finisht =~ [0-2][0-3]:[0-5][0-9] ]] || [[ "$tDiff" -le 0 ]];
then
                                until [[ $b1 =~ [0-1][0-9]:[0-5][0-9] ]] || [[ ! $b1 =~ [0-2][0-3]:[0-5][0-9] ]] && [[ ! $b2 =~ [0-1][0-9]:[0-5][0-9] ]] \
                                        || [[ $b2 =~ [0-2][0-3]:[0-5][0-9] ]] && [[ "$tzDiff" -le 0 ]]; do

                                var2="$(zenity --forms --title="start_time and/or finish_time are incorrect" --text "Add a start_time and a finish_time"  --separator="," \
                                      --add-entry="WARNING! Something went wrong. Please enter a valid start_time: " \
                                      --add-entry="WARNING! Something went wrong. Please enter a valid finish_time: ")"

                                b1=$(echo $var2 | awk -F, -v  OFS=, '{print $1}')
                                b2=$(echo $var2 | awk -F, -v  OFS=, '{print $2}')

                                tz1=`date --date="$b1" +%s`
                                tz2=`date --date="$b2" +%s`
                                let "tzDiff=$tz2-$tz1"

                                done

fi

echo $var2

答案1

一些評論：

  • 要刪除一些錯誤訊息，您應該使用2>/dev/null.

  • 您需要更頻繁地測試變數的值。

  • or當你用and 做一些複雜的測試時，and你需要使用括號，以確定你想要什麼。

#!/bin/bash

input=30:20,12:45

startt=$(echo $input | awk -F, -v  OFS=, '{print $1}')
finisht=$(echo $input | awk -F, -v  OFS=, '{print $2}')

#
#  when you call date you need to redirect error messages to /dev/null 
#

st=$( date --date="$startt" +%s  2>/dev/null )
ft=$( date --date="$finisht" +%s 2>/dev/null ) 

#
# i will compute the diff only if i have 2 values   
#

if [ -n "$st" -a "$ft" ] ; then
    #
    # because i had 2 numbers  , conversion to timestamp was good  
    # i will normalize value of startt / finisht
    #
    startt=$(date +%H:%M  -d "$startt"  )
    finisht=$(date +%H:%M -d "$finisht" )

    #
    # we recompute the timestamp to be sure that the normalization does not change
    #
    st=$( date --date="$startt" +%s  2>/dev/null )
    ft=$( date --date="$finisht" +%s 2>/dev/null ) 

    tzdiff=$(( ft - st ))
else
    tzdiff=0
fi    

#
#   
#   test for starttt must be enclosed with ( )
#   test for finisht must be enclosed with ( )
#

while [[  ( ( ! "$startt"   =~ ^[0-1][0-9]:[0-5][0-9]$ ) && ( ! "$startt"  =~ ^[0-2][0-3]:[0-5][0-9]$ ) ) || 
          ( ( ! "$finisht"  =~ ^[0-1][0-9]:[0-5][0-9]$ ) && ( ! "$finisht" =~ ^[0-2][0-3]:[0-5][0-9]$ ) ) || 
          ( "$tzdiff" -le 0 )  ]];
do
    var2="$(zenity --forms --title="start_time and/or finish_time are incorrect" --text "Add a start_time and a finish_time"  --separator="," \
                   --add-entry="WARNING! Something went wrong. Please enter a valid start_time: " \
                   --add-entry="WARNING! Something went wrong. Please enter a valid finish_time: ")"
    #
    # we set tzdiff to zero so we are going to loop for ever if nothing the value 
    #
    tzdiff=0
    #
    # if var2 is empty do nothing 
    #
    if [ -n "$var2" ] ; then
       b1=$(echo "$var2" | cut -d, -f1 )
       b2=$(echo "$var2" | cut -d, -f2 )
       #
       # if b1 or b2 is empty do nothing 
       #
       if [ -n "$b1" -a -n "$b2"  ] ; then
           tz1=$( date --date="$b1" +%s 2>/dev/null )
           tz2=$( date --date="$b2" +%s 2>/dev/null )
           #
           # if tz1 or tz2 is empty do nothing 
           #
           if [ -n "$tz1" -a -n "$tz2" ] ; then
              startt=$(date +%H:%M -d $b1 )
              finisht=$(date +%H:%M -d $b2 )

              tz1=$( date --date="$b1" +%s 2>/dev/null )
              tz2=$( date --date="$b2" +%s 2>/dev/null )

              tzdiff=$(( tz2 - tz1 ))
           fi
       fi
    fi
    echo $var2 $startt $finisht $tzdiff
done

echo $var2 $startt $finisht $tzdiff

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