Bash，tar“无法统计没有这样的文件或目录”
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Bash, tar "cannot stat no such file or directory"
提问by Cláudio Ribeiro
I'm trying to build a little backup script but I keep getting the following error:
我正在尝试构建一个小备份脚本，但我不断收到以下错误：
tar: Removing leading `/' from member names
tar: /projects: Cannot stat: No such file or directory
tar: Exiting with failure status due to previous errors
The folder /projects exists, but still no tar ball is created. Here is my code:
文件夹 /projects 存在，但仍然没有创建 tar ball。这是我的代码：
#!/bin/bash
backup_files="/projects"
#destination of backup
dest="/"
#Create archive filename
day=$(date +%Y-%m-%d)
hostname=$(hostname -s)
archive_file="$hostname-$day.tar.gz"
#Backup the files using tar
tar -czf $archive_file $backup_files
#Print end status message
echo
echo "Backup finished"
ls -ld /projects shows the following:
ls -ld /projects 显示以下内容：
ls: cannot access /projects: No such file or directory
Any idea on what is wrong?
知道什么是错的吗？
回答by sig_seg_v
Filepaths that start with a leading /on Linux and other related systems are located at the root directory. This means that "/projects"usually refers to a different directory than "projects".
/在 Linux 和其他相关系统上以前导开头的文件路径位于根目录中。这意味着"/projects"通常指的是与"projects".
It looks like you probably are trying to access a subdirectory /path/to/projectsfrom directory /path/tousing the path /projects. This is incorrect -- if your working directory is /path/to, you need to access folder projectsby changing backup_files="/projects"to backup_files="./projects"-- "."refers to the current working directory -- or simply backup_files="projects".
看起来您可能正在尝试使用 path访问/path/to/projects目录中的子目录。这是不正确的 - 如果您的工作目录是，您需要通过更改为-指当前工作目录 - 或简单地访问文件夹。/path/to/projects/path/toprojectsbackup_files="/projects"backup_files="./projects""."backup_files="projects"
So, while relative filepaths "./projects"and "projects"are usually equivalent, they are generally and functionally different from the fully qualified path "/projects".
因此，虽然相对文件路径"./projects"和"projects"通常是等效的，但它们通常和功能上与完全限定的路径不同"/projects"。
