執行 for..in 並觸摸時收到消息“文件名太長”

我想觸摸目錄中的每個文件：

files=$(ls -a "node_modules/suman-types/dts")

echo "files $files";

for file in "$files"; do
   echo "touching file $file";
   touch "node_modules/suman-types/dts/$file";
done

但在執行之後，我得到：

inject.d.ts
injection.d.ts
integrant-value-container.d.ts
it.d.ts
reporters.d.ts
runner.d.ts
suman-utils.d.ts
suman.d.ts
table-data.d.ts
test-suite-maker.d.ts
test-suite.d.ts: File name too long

那個“文件名太長”的消息是關於什麼的？

更新#1

我將腳本更改為：

files=$(find "node_modules/suman-types/dts" -name "*.d.ts")

for file in "$files"; do
   echo "touching file $file";
   touch "$file";
done

touch "node_modules/suman-types"

但後來我明白了：

$ ./types-touch.sh
   touching file node_modules/suman-types/dts/after-each.d.ts
   node_modules/suman-types/dts/after.d.ts
   node_modules/suman-types/dts/before-each.d.ts
   node_modules/suman-types/dts/before.d.ts
   node_modules/suman-types/dts/describe.d.ts
   node_modules/suman-types/dts/global.d.ts
   node_modules/suman-types/dts/index-init.d.ts
   node_modules/suman-types/dts/inject.d.ts
   node_modules/suman-types/dts/injection.d.ts
   node_modules/suman-types/dts/integrant-value-container.d.ts
   node_modules/suman-types/dts/it.d.ts
   node_modules/suman-types/dts/reporters.d.ts
   node_modules/suman-types/dts/runner.d.ts
   node_modules/suman-types/dts/suman-utils.d.ts
   node_modules/suman-types/dts/suman.d.ts
   node_modules/suman-types/dts/table-data.d.ts
   node_modules/suman-types/dts/test-suite-maker.d.ts
   node_modules/suman-types/dts/test-suite.d.ts
   touch: node_modules/suman-types/dts/after-each.d.ts
   node_modules/suman-types/dts/after.d.ts
   node_modules/suman-types/dts/before-each.d.ts
   node_modules/suman-types/dts/before.d.ts
   node_modules/suman-types/dts/describe.d.ts
   node_modules/suman-types/dts/global.d.ts
   node_modules/suman-types/dts/index-init.d.ts
   node_modules/suman-types/dts/inject.d.ts
   node_modules/suman-types/dts/injection.d.ts
   node_modules/suman-types/dts/integrant-value-container.d.ts
   node_modules/suman-types/dts/it.d.ts
   node_modules/suman-types/dts/reporters.d.ts
   node_modules/suman-types/dts/runner.d.ts
   node_modules/suman-types/dts/suman-utils.d.ts
   node_modules/suman-types/dts/suman.d.ts
   node_modules/suman-types/dts/table-data.d.ts
   node_modules/suman-types/dts/test-suite-maker.d.ts
   node_modules/suman-types/dts/test-suite.d.ts: No such file or directory

您的問題源於將所有ls輸出擷取到一個名為files. 該變數看起來像：

filename1\nfilename2\nfilename3\n...

親自查看：

echo "$files" | od -c

你真正做的是在一個非常長的字元串上循環一次，該字元串對應於一個不存在的文件。你得到的錯誤資訊量很小——它告訴你這個長的文件名字元串不存在。

要觸摸目錄中的每個文件，只需使用 shell globbing 並執行touch：

touch node_modules/suman-types/dts/*

或一一觸摸：

for file in node_modules/suman-types/dts/*; do touch "$file"; done

或找到它們並觸摸它們：

find node_modules/suman-types/dts -type f -exec touch -- {} \;

引用自：https://unix.stackexchange.com/questions/405527