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Full Discussion: Access time of a file
Top Forums UNIX for Dummies Questions & Answers Access time of a file Post 302232453 by MartyIX on Thursday 4th of September 2008 12:57:26 PM
Old 09-04-2008
I made a simple script and copied the output:

Code:
file=example_1.sh;stat $file; cat $file >/dev/null; stat $file

Code:
  File: `example_1.sh'
  Size: 918             Blocks: 2          IO Block: 4096   regular file
Device: fh/15d  Inode: 2099578354  Links: 1
Access: (0744/-rwxr--r--)  Uid: (13654/vsetm7am)   Gid: (  200/ nofiles)
Access: 2008-09-02 21:47:11.000000000 +0200
Modify: 2008-09-02 21:47:11.000000000 +0200
Change: 2008-09-02 21:47:11.000000000 +0200
  File: `example_1.sh'
  Size: 918             Blocks: 2          IO Block: 4096   regular file
Device: fh/15d  Inode: 2099578354  Links: 1
Access: (0744/-rwxr--r--)  Uid: (13654/vsetm7am)   Gid: (  200/ nofiles)
Access: 2008-09-02 21:47:11.000000000 +0200
Modify: 2008-09-02 21:47:11.000000000 +0200
Change: 2008-09-02 21:47:11.000000000 +0200

How come that access time didn't change when data was accessed?
 

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ost::File(3)						     Library Functions Manual						      ost::File(3)

NAME
ost::File - SYNOPSIS
#include <file.h> Inherited by ost::Dir, and ost::RandomFile. Classes struct _fcb Public Types enum Error { errSuccess = 0, errNotOpened, errMapFailed, errInitFailed, errOpenDenied, errOpenFailed, errOpenInUse, errReadInterrupted, errReadIncomplete, errReadFailure, errWriteInterrupted, errWriteIncomplete, errWriteFailure, errLockFailure, errExtended } enum Access { accessReadOnly = O_RDONLY, accessWriteOnly = O_WRONLY, accessReadWrite = O_RDWR } enum Open { openReadOnly = O_RDONLY, openWriteOnly = O_WRONLY, openReadWrite = O_RDWR, openAppend = O_WRONLY | O_APPEND, openSync = O_RDWR, openTruncate = O_RDWR | O_TRUNC } enum Attr { attrInvalid = 0, attrPrivate = 0400 | 0200, attrGroup = attrPrivate | 0040 | 0020, attrPublic = attrGroup | 0004 | 0002 } enum Mapping { mappedRead = accessReadOnly, mappedWrite = accessWriteOnly, mappedReadWrite = accessReadWrite } enum Complete { completionImmediate, completionDelayed, completionDeferred } typedef enum Error Error typedef enum Access Access typedef enum Open Open typedef enum Attr Attr typedef enum Complete Complete typedef enum Mapping Mapping Static Public Member Functions static const char * getExtension (const char *path) static const char * getFilename (const char *path) static char * getFilename (const char *path, char *buffer, size_t size=64) static char * getDirname (const char *path, char *buffer, size_t size=256) static char * getRealpath (const char *path, char *buffer, size_t size=256) Protected Types typedef struct ost::File::_fcb fcb_t Member Typedef Documentation typedef enum Access ost::File::Access typedef enum Attr ost::File::Attr typedef enum Complete ost::File::Complete typedef enum Error ost::File::Error typedef struct ost::File::_fcb ost::File::fcb_t [protected] typedef enum Mapping ost::File::Mapping typedef enum Open ost::File::Open Member Enumeration Documentation enum ost::File::Access Enumerator: accessReadOnly accessWriteOnly accessReadWrite enum ost::File::Attr Enumerator: attrInvalid attrPrivate attrGroup attrPublic enum ost::File::Complete Enumerator: completionImmediate completionDelayed completionDeferred enum ost::File::Error Enumerator: errSuccess errNotOpened errMapFailed errInitFailed errOpenDenied errOpenFailed errOpenInUse errReadInterrupted errReadIncomplete errReadFailure errWriteInterrupted errWriteIncomplete errWriteFailure errLockFailure errExtended enum ost::File::Mapping Enumerator: mappedRead mappedWrite mappedReadWrite enum ost::File::Open Enumerator: openReadOnly openWriteOnly openReadWrite openAppend openSync openTruncate Member Function Documentation static char* ost::File::getDirname (const char *path, char *buffer, size_tsize = 256) [static] static const char* ost::File::getExtension (const char *path) [static] static const char* ost::File::getFilename (const char *path) [static] static char* ost::File::getFilename (const char *path, char *buffer, size_tsize = 64) [static] static char* ost::File::getRealpath (const char *path, char *buffer, size_tsize = 256) [static] Author Generated automatically by Doxygen for GNU CommonC++ from the source code. GNU CommonC++ Sat Jun 23 2012 ost::File(3)
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