☰

shell腳本在for循環多個文字中回顯文字名稱

tag-icon • tag-icon shell-script variable dash
shell腳本在for循環多個文字中回顯文字名稱

我正在嘗試這樣做

text1="word1 word2 word3"
text2="word4 word5"
text1="word6 word7 word8"

for var in $text1 $text2 $text3
do
  echo $var" in "(__?__)
done

預期產出

word1 in text1
word2 in text1
...
word4 in text2
...
word8 in text3
  1. 腳本將使用破折號 -> 執行，因此不允許使用 bashisms
  2. 我知道 shell 不是文字處理工具
  3. 循環是否在迭代之前連接 $text1 $text2 $text3 ？

答案1

text1="word1 word2 word3"
text2="word4 word5"
text3="word6 word7 word8"
set -f #disable globbing in unquoted var expansions (optional) 
for i in text1 text2 text3; do
    eval "j=\$$i" #i holds name, $j holds the fields
    for k in $j; do #k holds a field
        echo "$k in $i"
    done
done

輸出：

word1 in text1
word2 in text1
word3 in text1
word4 in text2
word5 in text2
word6 in text3
word7 in text3
word8 in text3

相關內容