symlink

问题 I'm trying to get the size in bytes of a /proc/pid/exe file with lstat. Here's my code: int main(int argc, char *argv[]) { struct stat sb; char *linkname; ssize_t r; if (argc != 2) { fprintf(stderr, "Usage: %s <pathname>\n", argv[0]); exit(EXIT_FAILURE); } if (lstat(argv[1], &sb) == -1) { perror("lstat"); exit(EXIT_FAILURE); } printf("sb.st_size %d\n", sb.st_size); exit(EXIT_SUCCESS); } It seems like sb.st_size is ALWAYS equal to 0, and I don't understand why. Plus, this sample is extracted

问题 I currently have my Dropbox saved on an external drive. I'm trying to figure out if at least one of theses two things is possible when I do not have my external drive with me: Can I create some kind of 'switch' so that when my external drive disconnects, the symbolic link automatically become a folder which I can still store my info in like usual, and next time I connect my external drive it will become a symbolic link again and upload the files that I stored while the drive was disconnected?

问题 On my Laravel website I'm using symlink to store and show the images from storage. With php artisan storage:link I had created the symlink and everytime when I upload a new news article, the image is uploaded in the main Storage and with symlink it's setup to the public folder and I'm displaying the image properly. So far so good, but when I've created a copy of the website, a problem appears... When I've created a copy of the website with cPanels File Manager, and move to a new location, the

问题 I have a file that contains a set of paths ~/somedir/pathfile.foo -------------------------- /home/user/dir/file1.bar /home/user/dir/file2.bar /home/user/dir/file3.bar /home/user/dir/file4.bar ... I would to write a bash script (or command) that would create symbolic links to all these .bar files within the current directory (.). For clarification, if pathfile.foo contains N paths I would like to have N symlinks. 回答1: while read line; do ln -s "$line" "${line##*/}" ; done <pathfile.foo After

问题 Does cygwin (1.7.x) understand Windows NTFS junction points (as created by mklink in Win7/2008 or sysinternals' junction.exe)? How do they differ from a symbolic link as created by "ln -s "? 回答1: Yes, Cygwin 1.7 does understand NTFS junction points and also NTFS symbolic links (as introduced with Vista). They appear as symbolic links to Cygwin programs, so that for example deleting such a link will only delete the link rather than the file being pointed too. The reason that Cygwin doesn't use

问题 I'm contributing to a Python 3 project from a Windows 7 computer. In order to minimise clutter while making and testing changes, I'm placing a few test files inside a folder called ignore within the project, and excluding it from the version control system (Git). There is no __init__.py file in the root of the project, so I thought I'd create a symbolic link from the module I want to test into the ignore folder, to enable me to import it. mklink ignore\example.py example.py When I try to

问题 I have an application with this structure. /path/releases /path/releases/01012016 /path/releases/16012016 /path/releases/etc.. And /path/dev (symlink to some version) /path/stag (symlink to some version) /path/stable (symlink to some version) My docker-compose.yml looks like this: nginx: ... volumes_from: - data php: ... volumes_from: - data data: volumes: - /path/stable:/var/www I known that Docker resolves symlinks. I have thought before deploy I just recreate data container and it's ok.

问题 If foo_user.cpp depends on foo.h, then foo_user.cpp is built, and then foo.h's modification time is set to further in the past, make will not rebuild foo_user.cpp (because foo.cpp is 'newer'). I'd prefer it if make recorded the modification times of dependencies, and if they changed at all (newer or older), to consider targets of that dependency to be out of date. Can GNU make do this? If not, is there an easy alternative? In case you're curious how this situation arises: foo.h resides in a

问题 On all the machines on my cluster, my home directory is mounted from the NFS server as /home/drive1/username . On the NFS server, the folder /home/drive1/username is a symbolic link to /drive1/username . Running: $ python -c "import os; os.chdir('/home/drive1/username'); print(os.getcwd())" on any machine other than the NFS server prints: /home/drive1/username but on the NFS server, the same command prints: /drive1/username Is there any way to prevent Python os.chdir from walking the symbolic

问题 In our output tree, the Test directory only contains symbolic links (Win7 x64) pointing to DLLs in various build directories. Next to each of these DLLs in the actual build directory is a corresponding PDB file. However, when running OpenCover on the DLL in the Test directory, it ends with "No results - no assemblies that matched the supplied filter were instrumented this could be due to missing PDBs for the assemblies that match the filter please review the output file and refer to the Usage