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Full Discussion: Extract date from file header and prefix it to all lines
Top Forums Shell Programming and Scripting Extract date from file header and prefix it to all lines Post 302360887 by thegeek on Sunday 11th of October 2009 07:22:26 AM
Old 10-11-2009
Code:
cat t.pl

while(<>)  {
    if ($_ =~ /STPAGE(.*)/)  {
        $date = $1;
        print $_;
        next;
    }
    print "$date $_";
}

Code:
$ perl t.pl input-file

STPAGE020090930
020090930 xyzz aalc 1+0000000000412600000000090000000000213320000000000000000000000372000000002732832000000000009524
020090930 xyzz aalc 200000000000000000000000000000000000000000000000018000000000267475000000000000947
020090930 xyzz aalc 3000003579700000000116247300000000000000000000000000000000000000000000000000000000000000000000000000007355
020090930 xyzz aclp 1+0000000000080800000000000000000000000000000000000000000000000009000000000044886000000000000315
020090930 xyzz aclp 200000000040000000000337500000000000010950000000000000000000000000000000000000000
020090930 xyzz aclp 3000000061200000000127983100000000000000000000000000000000000000010000001000000000000017460000000000001460
020090930 xyzz aclp 4000001000000
020090930 xyzz aclp 568618d102       ogsm          200909240000010000000000000003179bc000000.320000slhq l02 lhq000019         lhq000108
020090930 00000000008
  STPAGE020090929
020090929 xyzz wstn 1+0000000011820000000000000000000000000000000000000000000000000001000000000003909000000000000084
020090929 xyzz wstn 3000000005000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000
020090929 xyzz wyom 1+0000000000391900000000000000000000000000000000000000000000000000000000000000000000000000000000
020090929 xyzz wyom 3000000038100000000011304900000000000000000000000000098800000000000000000000000000000000000000000000000070
020090929 00000000004

It is always good to explain, what you tried and the difficulty you are facing, instead of just asking for a solution ?! Isn't it ?!
 

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LEARN ABOUT OPENSOLARIS

acl_get

acl_get(3SEC)					       File Access Control Library Functions					     acl_get(3SEC)

NAME

       acl_get, facl_get, acl_set, facl_set - get or set a file's Access Control List (ACL)

SYNOPSIS

       cc [ flag... ] file... -lsec [ library... ]
       #include <sys/acl.h>

       int *acl_get(const char *path, int flag, acl_t **aclp);

       int *facl_get(int fd, int flag, acl_t **aclp);

       int acl_set(const char *path, acl_t *aclp);

       int facl_set(int fd, acl_t *aclp);

DESCRIPTION

       The  acl_get()  and  facl_get()	functions retrieve an Access Control List (ACL) of a file whose name is given by path or referenced by the
       open file descriptor fd. The flag argument specifies whether a trivial ACL should be retrieved. When the flag argument  is  ACL_NO_TRIVIAL,
       only ACLs that are not trivial will be retrieved. The ACL is returned in the aclp argument.

       The  acl_set()  and  facl_set()	functions are used for setting an ACL of a file whose name is given by path or referenced by the open file
       descriptor fd. The aclp argument specifies the ACL to set.

       The acl_get() and acl_set() functions support multiple types of ACLs.  When possible, the acl_set() function translates an ACL to the  tar-
       get  file's style of ACL. Currently this is only possible when translating from a POSIX-draft ACL such as on UFS to a file system that sup-
       ports NFSv4 ACL semantics such as ZFS or NFSv4.

RETURN VALUES

       Upon successful completion, acl_get() and facl_get() return 0 and aclp is non-NULL. The aclp argument can be NULL after successful  comple-
       tion  if  the  file  had a trivial ACL and the flag argument was ACL_NO_TRIVIAL. Otherwise, -1 is returned and errno is set to indicate the
       error.

       Upon successful completion, acl_set() and facl_set() return 0. Otherwise, -1 is returned and errno is set to indicate the error.

ERRORS

       These functions will fail if:

       EACCES	  The caller does not have access to a component of path.

       EIO	  A disk I/O error has occured while retrieving the ACL.

       ENOENT	  A component of the path does not exist.

       ENOSYS	  The file system does not support ACLs.

       ENOTSUP	  The ACL supplied could not be translated to an NFSv4 ACL.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Evolving			   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |MT-Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       chmod(1), acl(2), acl(5), attributes(5)

SunOS 5.11							    6 Oct 2005							     acl_get(3SEC)
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