Question

我运行find并使用[ $ -L $F $ ]迭代结果以收集某些符号链接。

我想知道在这种情况下是否有一种简单的方法可以确定链接是否已损坏（指向不存在的文件）。

这是我的代码：

FILES=`find /target/ | grep -v '\.disabled$' | sort`

for F in $FILES; do
    if [ -L $F ]; then
        DO THINGS
    fi
done

Answer 1

# test if file exists (test actual file, not symbolic link)
if [ ! -e "$F" ] ; then
    # code if the symlink is broken
fi

Answer 2

这应打印出已损坏的链接：

find /target/dir -type l ! -exec test -e {} \; -print

您还可以将操作链接到find命令，例如删除断开的链接：

find /target/dir -type l ! -exec test -e {} \; -exec rm {} \;

Answer 3

如果链接错误，

readlink -q将无声地失败：

for F in $FILES; do
    if [ -L $F ]; then
        if readlink -q $F >/dev/null ; then
            DO THINGS
        else
            echo "$F: bad link" >/dev/stderr
        fi
    fi
done

Answer 4

如果符号链接指向文件或目录，但现在已断开

，这将起作用

if [[ -L "$strFile" ]] && [[ ! -a "$strFile" ]];then 
  echo "'$strFile' is a broken symlink"; 
fi

Answer 5

这会找到“link”类型的所有文件，这些文件也会解析为“link”类型。即。一个破碎的符号链接

find /target -type l -xtype l

Answer 6

如果你不介意遍历非破坏的dir符号链接，找到所有孤立的链接：

$ find -L /target -type l | while read -r file; do echo $file is orphaned; done

要查找非孤立链接的所有文件：

$ find -L /target ! -type l

Answer 7

怎么了？

file $f | grep 'broken symbolic link'

Answer 8

如果确实符合符号链接的条件，但“不存在”，则它是断开的链接。

{
  "name": "web-resources",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "animate.css": "3.7.0",
    "bootstrap": "4.1.3",
    "bootstrap-select": "1.13.2",
    "chartist": "0.11.0",
    "clipboard": "2.0.1",
    "custombox": "4.0.3",
    "datatables": "1.10.18",
    "flag-icon-css": "3.0.0",
    "flatpickr": "4.5.1",
    "gmaps": "0.4.24",
    "instafeed.js": "1.4.1",
    "ion-rangeslider": "2.2.0",
    "jquery": "^3.4.1",
    "jquery-migrate": "3.0.1",
    "jquery-validation": "1.17.0",
    "lazysizes": "5.2.0",
    "malihu-custom-scrollbar-plugin": "3.1.5",
    "popper.js": "1.14.4",
    "summernote": "0.8.10",
    "svg-injector": "1.1.3",
    "typed.js": "2.0.9"
  },
  "devDependencies": {
    "browser-sync": "^2.26.7",
    "del": "3.0.0",
    "gulp": "^4.0.2",
    "gulp-autoprefixer": "5.0.0",
    "gulp-cache": "1.0.2",
    "gulp-changed": "3.1.0",
    "gulp-clean": "0.4.0",
    "gulp-concat": "2.6.1",
    "gulp-cssnano": "2.1.3",
    "gulp-htmlmin": "4.0.0",
    "gulp-imagemin": "4.1.0",
    "gulp-inject": "^5.0.4",
    "gulp-rename": "1.4.0",
    "gulp-sass": "4.0.1",
    "gulp-sourcemaps": "2.6.4",
    "gulp-uglifyjs": "0.6.2",
    "imagemin-jpeg-recompress": "5.1.0",
    "imagemin-pngquant": "5.1.0"
  }
}

REFERENCE

如何检测Bash中符号链接是否被破坏？

8 个答案: