运行 for..in 并触摸时收到消息“文件名太长”

Question

我想触摸目录中的每个文件：

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

但运行后，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

“文件名太长”消息是关于什么的？

更新 #1

我把我的脚本改成这样：

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"

但后来我得到了这个：

$ ./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

Answer 1

您的问题源于将所有ls输出捕获到名为files. 变量看起来像：

filename1\nfilename2\nfilename3\n...

自己看看：

echo "$files" | od -c

你真正在做的是在一个非常长的字符串上循环一次，该字符串对应于一个不存在的文件。你得到的错误信息有点多——它告诉你这个长的文件名字符串不存在。

要访问目录中的每个文件，只需使用 shell globbing 并运行touch：

touch node_modules/suman-types/dts/*

或一一触摸：

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

或找到它们并触摸它们：

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