在Bash腳本編寫Linux中使用帶for循環的case語句

Question

該腳本應該查看我的參數，並告訴我單詞是否以大寫，小寫或數字開頭。 現在，當我輸入＃個單詞時，它告訴我它們都是大寫的。 謝謝。

#!/bin/bash

startwithdigit=0
startwithupper=0
startwithlower=0
startwithother=0

for digit in $@

do
case $@ in

    [[:lower:]]* ) startwithlower=$((startwithlower+1)) ;;

    [[:upper:]]* ) startwithupper=$((startwithupper+1)) ;;

    [[:digit:]]* ) startwithdigit=$((startwithdigit+1)) ;;

esac

done

echo $startwithlower words begin with a lowercase
echo $startwithupper words begin with a capital
echo $startwithdigit words begin with a digit

~~

Answer 1

請嘗試以下操作：

我使用的是if語句而不是大小寫，並且我通過在文件中追加並隨后進行字數計數來進行計數，而不是每次都向計數器添加1。

# Sample data

"India China dubai germany 123 456 666" to the script. 

 It has 2 uppercase words, 2 lowercase words and 3 digit words.

# Sample output

bash$> ./upper_lower.sh "India China dubai germany 123 456 666"

2 words are lowercase

2 words are uppercase

3 words are digits

＃ 劇本。

bash$> cat upper_lower.sh
#!/bin/bash


# Main loop to process the words passed to script in ARGV array

for w in $@

do
        echo $w | while read word
        do

                # Matching lowercase only
                if [[ $word =~ ^[a-z] ]]
                then
                        echo $word >> aa
                fi

                # Matching UPPERCASE only
                if [[ $word =~ ^[A-Z] ]]
                then
                        echo $word >> bb
                fi

                # Matching digits only
                if [[ $word =~ ^[0-9] ]]
                then
                        echo $word >> cc
                fi

        done
done

l=`cat aa|wc -l`        # Taking lowercase count
u=`cat bb|wc -l`        # Taking uppercase count
d=`cat cc|wc -l`        # Taking digits count

echo; echo "$l words are lowercase"     # Added extra echo just to print new line.
echo; echo "$u words are uppercase"
echo; echo "$d words are digits"

rm aa bb cc             # removing temp files after processing
bash$>