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John Smith's questions

Martin Hope
John Smith
Asked: 2022-01-29 10:13:09 +0800 CST
  • 2

以下代码旨在查找~/Downloads. 我用. ./script.sh. 即使用户提交的名称不完整，它也会找到它们。

#!/usr/bin/bash

echo -e "\nGive me the name of a nonexitent directory and I will look for it in ~/Downloads?\n"

read word

TOGOs=("$(find ~/Downloads -maxdepth 1 -iname "*$word*" -type d -execdir echo {} + | sed 's;./;/home/smith/Downloads/;g')"
"")
for togo in ${TOGOs[@]}
do
  if [[ $togo != "" ]]; then
    echo $togo
    export togo && cd $togo && return 0
  else
    echo "Haven't found it in ~/Downloads ." && cd ~/Downloads #This line does not work
  fi
done

该if部分按预期工作 - 当我给它一个名称/子目录名称的一部分时~/Downloads/，但是else当我给它一个不存在的目录时，该块的部分永远不会被执行。else当我摆脱循环时，我可以执行该部分，如下所示：

#!/usr/bin/bash

echo -e "\nGive me the name of a nonexitent directory and I will look for it in ~/Downloads?\n"

read word
TOGO=$(find ~/Downloads -maxdepth 1 -iname "*$word*" -type d -execdir echo {} + | sed 's;./;/home/smith/Downloads/;g')

if [[ $TOGO != "" ]]; then
  echo $TOGO
  export TOGO 
  cd $TOGO && return 0
else

  echo "Haven't found it in ~/Downloads." && cd ~/Downloads
fi

为什么else当我摆脱循环时手臂会被执行？如何在保留循环的同时执行我的代码？

bash quoting