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Full Discussion: Issues with grep -w
Top Forums Shell Programming and Scripting Issues with grep -w Post 302343173 by rdhanek on Tuesday 11th of August 2009 11:27:34 PM
Old 08-12-2009
Giving an error message as it is treating 21 as the file name.

---------- Post updated at 11:27 PM ---------- Previous update was at 11:18 PM ----------

It it is working fine in the script also if i input the data manually like as i shown below.
a='08/11/2009 21'
export a

But it is not working if i am use the script shown below for getting the value into variable $a. Even though i am able to echo $a correctly.

Code:
#!/bin/bash
genexpression()
{
stime=`date '+ %H'`
#stime=4;
if (( $stime < 5))
then
stime=`expr $stime \+ 19`
export express=`TZ=CST+24 date '+ %m/%d/%Y'`\ $stime
#stime=`expr $stime \- 5`
else
stime=`expr $stime \- 5`
if (( $stime < 10 ))
then
stime=0${stime}
fi
export express=`date '+%m/%d/%Y'`\ $stime
fi
}
genexpression
echo $express
a=$express
export a
echo $a
grep -w "$a" LOG.txt

Last edited by rdhanek; 08-12-2009 at 12:54 AM..
 

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LEARN ABOUT MINIX

stime

STIME(2)                                                     Linux Programmer's Manual                                                    STIME(2)

NAME

       stime - set time

SYNOPSIS

       #include <time.h>

       int stime(const time_t *t);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       stime():
           Since glibc 2.19:
               _DEFAULT_SOURCE
           Glibc 2.19 and earlier:
               _SVID_SOURCE

DESCRIPTION

       stime()  sets  the  system's  idea  of  the  time  and date.  The time, pointed to by t, is measured in seconds since the Epoch, 1970-01-01
       00:00:00 +0000 (UTC).  stime() may be executed only by the superuser.

RETURN VALUE

       On success, zero is returned.  On error, -1 is returned, and errno is set appropriately.

ERRORS

       EFAULT Error in getting information from user space.

       EPERM  The calling process has insufficient privilege.  Under Linux, the CAP_SYS_TIME privilege is required.

CONFORMING TO

       SVr4.

SEE ALSO

       date(1), settimeofday(2), capabilities(7)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

Linux                                                               2016-03-15                                                            STIME(2)
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