如何继续bash循环？

Question

我目前面临一个我无法解决的问题。 在 Mac OS Catalina 上编写 bash 脚本。 循环通过真话陈述，但在面对错误陈述后，它坚持下去。

任务%Do something%如果循环中的当前日期是工作日。

代码

# Set initial dates
starting_date=2020-02-10
ending_date=2020-02-24
current_date=$starting_date

#What is the day of the week of this day
current_date_wd=$(date -j -f "%Y-%m-%d" "$current_date" +%u )

#Loop in the set date range
while [ "$current_date" != "$ending_date" ]; 
do
  if [ "$current_date_wd" != "6" ] && [ "$current_date_wd" != "7" ]
  then

# Echo the current workday
    echo 'Today is '$current_date' and it-s a '$current_date_wd'-s day'

# Increment by 1d
    current_date=`date -j -v +1d -f "%Y-%m-%d" "$current_date" +%Y-%m-%d`

# Calculate day of week
    current_date_wd=$( date -j -f "%Y-%m-%d" "$current_date" +%u )
  else

# Increment
    current_date=`date -j -v +1d -f "%Y-%m-%d" "$current_date" +%Y-%m-%d`

# Skip
    echo 'skip'
    continue
  fi
done

输出的第一部分是正确的。 循环经过这些日子并显示消息。 但是在满足 false 条件之后，循环不会返回检查语句。 输出

Today is 2020-02-10 and it-s a 1-s day
Today is 2020-02-11 and it-s a 2-s day
Today is 2020-02-12 and it-s a 3-s day
Today is 2020-02-13 and it-s a 4-s day
Today is 2020-02-14 and it-s a 5-s day
skip
skip
skip
skip
skip
skip
skip
skip
skip

预期的

Today is 2020-02-10 and it-s a 1-s day
Today is 2020-02-11 and it-s a 2-s day
Today is 2020-02-12 and it-s a 3-s day
Today is 2020-02-13 and it-s a 4-s day
Today is 2020-02-14 and it-s a 5-s day
skip
skip
Today is 2020-02-17 and it-s a 1-s day
Today is 2020-02-18 and it-s a 2-s day
Today is 2020-02-19 and it-s a 3-s day
Today is 2020-02-20 and it-s a 4-s day
Today is 2020-02-21 and it-s a 5-s day
skip
skip

为什么“继续”不起作用？

Answer 1

您忘记在其他部分更新current_date_wd ，这是有效的解决方案。

starting_date=2020-02-10
ending_date=2020-02-24
current_date=$starting_date

#What is the day of the week of this day
current_date_wd=$(date -j -f "%Y-%m-%d" "$current_date" +%u )

#Loop in the set date range
while [ "$current_date" != "$ending_date" ]; 
do
  if [ "$current_date_wd" != "6" ] && [ "$current_date_wd" != "7" ]
  then

    # Echo the current workday
    echo 'Today is '$current_date' and it-s a '$current_date_wd'-s day'

    # Increment by 1d
    current_date=`date -j -v +1d -f "%Y-%m-%d" "$current_date" +%Y-%m-%d`

    # Calculate day of week
    current_date_wd=$( date -j -f "%Y-%m-%d" "$current_date" +%u )
  else

    # Increment
    current_date=`date -j -v +1d -f "%Y-%m-%d" "$current_date" +%Y-%m-%d`
    current_date_wd=$( date -j -f "%Y-%m-%d" "$current_date" +%u )

    # Skip
    echo 'skip'
    continue
  fi
done