![]() Specified in the corresponding Arch Linux package. License, except for the contents of the manual pages, which have their own license The website is available under the terms of the GPL-3.0 Using mandoc for the conversion of manual pages. Package information: Package name: core/man-pages Version: 6.04-1 Upstream: Licenses: GPL, custom Manuals: /listing/core/man-pages/ Table of contents Or setting the timestamps to something other than the current time on an Linux does not allow changing the timestamps on an immutable file, EROFS path resides on a read-only filesystem. Owner of the file, and the caller is not privileged (Linux: does not have EPERM times is not NULL, the caller's effective UID does not match the The caller is not privileged (Linux: does not have either theĬAP_DAC_OVERRIDE or the CAP_FOWNER capability). Owner of the file, the caller does not have write access to the file, and EACCES times is NULL, the caller's effective user ID does not match the ERRORS EACCES Search permission is denied for one of the directories in the path prefix On error, -1 is returned, andĮrrno is set to indicate the error. If times is NULL, thenĪnalogously to utime(), the access and modification times of the fileĪre set to the current time. ![]() Times specifies the new access time, and times The elements of thisĪrray are timeval structures, which allow a precision of 1 The utimes() system call is similar, but the timesĪrgument refers to an array rather than a structure. The utime() system call allows specification of timestamps If times is NULL, then the access and modification times ofĬhanging timestamps is permitted when: either the process hasĪppropriate privileges, or the effective user ID equals the user ID of theįile, or times is NULL and the process has write permission for the (ctime) will be set to the current time, even if the other time stamps don't Times of the inode specified by filename to the actime and The utime() system call changes the access and modification Note: modern applications may prefer to use the interfaces Standard C library ( libc, -lc) SYNOPSIS #include int utime(const char * filename, const struct utimbuf *_Nullable times ) #include int utimes(const char * filename, const struct timeval times ) DESCRIPTION The system time is when the kernel is executing system calls for the process and servicing interrupts. The system time is the time spent by the CPU in executing instructions on behalf of a process in the kernel mode. chowning the folder to the current user makes tar fail silently so the installer can continue.Utime, utimes - change file last access and modification times LIBRARY The user time is the time spent by the CPU in executing instructions in user mode. Judging from the OP's own answer, it seems then that the installer checks tar's exit code and stops if an error was encountered. Permissions are restored for both the folder and the files, and no error is thrown even though user2 ownership could not be restored. Here's what happens if the extraction is performed in a directory owned by user1 instead: $ tar xpvzf As indicated above, some filesystems (perhaps non-Linux, perhaps network drives), do not support a UNIX client setting the timestamp or setting of UNIX permissions. The files are however extracted, although owned by user1. Tar throws an error because it cannot change ownership and permissions for files owned by user2. Tar: Exiting with failure status due to previous errors : Cannot change mode to rwxrwxr-x: Operation not permitted ![]() If we extract the archive in a directory owned by user2 with permissions 777, here's the outcome: $ tar xpvzf Do for state TRANSACTION: find first state exclusive-lock no-wait. clock ticks per second can be determined with the sysconf system call. ![]() stime is the CPU time spent executing system calls on behalf of the process. It is CPU time only and doesn't include time spent waiting to run. Let's say we are user1 and have created an archive with tar cvpzf . utime represents user time, and is the time spent executing instructions. Update: Here's some more details about tar's behaviour. Reference: read this informative Q&A on askubuntu:Įven if you use tar's -same-owner flag, you will still need to extract the files as root to preserve ownership. Question: Permissions cannot be restored for a tar
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