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Full Discussion: How to calculate unix epoch time with DC(Calculator)
Top Forums Shell Programming and Scripting How to calculate unix epoch time with DC(Calculator) Post 302472473 by mithunpatel on Wednesday 17th of November 2010 08:39:25 AM
Old 11-17-2010
Code:
filetime=`cpio -o 2> /dev/null << EOF | od -x | sed '1d
s/[^ ]* *\(....\) *\(....\).*/16i\1\2p/;y/abcdef/ABCDEF/;q'|dc
$filedir/$dirlist/$filelist
EOF`

---------- Post updated at 08:39 AM ---------- Previous update was at 08:36 AM ----------

@methyl
Yes I mean unix DC program.
Also please explain how the "od" command plays the significance and how DC gets the above out put. I was wondering what was the purpose of "od" here.
Last edited by vbe; 11-17-2010 at 09:41 AM.. Reason: code tags please
 

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LEARN ABOUT OPENSOLARIS

cpio

cpio.h(3HEAD)							      Headers							     cpio.h(3HEAD)

NAME

       cpio.h, cpio - cpio archive values

SYNOPSIS

       #include <cpio.h>

DESCRIPTION

       Values needed by the c_mode field of the cpio archive format are described as follows:

	    Name		       Description
       -----------------------------------------------------------
       C_IRUSR		 Read by owner
       C_IWUSR		 Write by owner
       C_IXUSR		 Execute by owner
       C_IRGRP		 Read by group
       C_IWGRP		 Write by group
       C_IXGRP		 Execute by group
       C_IROTH		 Read by others
       C_IWOTH		 Write by others
       C_IXOTH		 Execute by others
       C_ISUID		 Set user ID
       C_ISGID		 Set group ID
       C_ISVTX		 On directories, restricted deletion flag
       C_ISDIR		 Directory
       C_ISFIFO 	 FIFO
       C_ISREG		 Regular file
       C_ISBLK		 Block special
       C_ISCHR		 Character special
       C_ISCTG		 Reserved
       C_ISLNK		 Symbolic link
       C_ISSOCK 	 Socket

       The header defines the symbolic constant:

	 MAGIC	       "070707"

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Standard			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       pax(1), attributes(5), standards(5)

SunOS 5.11							    10 Sep 2004 						     cpio.h(3HEAD)
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