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Top Forums Shell Programming and Scripting Deleting entries older than 7 days from a file Post 302727923 by arijitsaha on Wednesday 7th of November 2012 06:51:55 AM
Old 11-07-2012
Deleting entries older than 7 days from a file

Hi,

I have a file which contains entries in this format.
Code:
my-bin.000140
my-bin.000141
my-bin.000142
my-bin.000143
my-bin.000144
my-bin.000145
my-bin.000146
my-bin.000147
my-bin.000148
my-bin.000149
my-bin.000150
my-bin.000151
my-bin.000152
my-bin.000153
my-bin.000154
my-bin.000155
my-bin.000156
my-bin.000157
my-bin.000158
my-bin.000159
my-bin.000160
my-bin.000161
my-bin.000162
my-bin.000163
my-bin.000164
my-bin.000165
my-bin.000166
my-bin.000167
my-bin.000168
my-bin.000169

I want to delete entries which are older than 7 days.
Pls suggest.Smilie

---------- Post updated at 05:21 PM ---------- Previous update was at 03:39 PM ----------

any ideasSmilie

Last edited by Franklin52; 11-07-2012 at 06:52 AM.. Reason: Please use code tags for data and code samples
 

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getusershell(3C)					   Standard C Library Functions 					  getusershell(3C)

NAME
getusershell, setusershell, endusershell - get legal user shells SYNOPSIS
#include <unistd.h> char *getusershell(void); void setusershell(void); void endusershell(void); DESCRIPTION
The getusershell() function returns a pointer to a legal user shell as defined by the system manager in the file /etc/shells. If /etc/shells does not exist, the following locations of the standard system shells are used in its place: /bin/bash /bin/csh /bin/jsh /bin/ksh /bin/ksh93 /bin/pfcsh /bin/pfksh /bin/pfsh /bin/sh /bin/tcsh /bin/zsh /sbin/jsh /sbin/pfsh /sbin/sh /usr/bin/bash /usr/bin/csh /usr/bin/jsh /usr/bin/ksh /usr/bin/ksh93 /usr/bin/pfcsh /usr/bin/pfksh /usr/bin/pfsh /usr/bin/sh /usr/bin/tcsh /usr/bin/zsh /usr/sfw/bin/zsh /usr/xpg4/bin/sh The getusershell() function opens the file /etc/shells, if it exists, and returns the next entry in the list of shells. The setusershell() function rewinds the file or the list. The endusershell() function closes the file, frees any memory used by getusershell() and setusershell(), and rewinds the file /etc/shells. RETURN VALUES
The getusershell() function returns a null pointer on EOF. BUGS
All information is contained in memory that may be freed with a call to endusershell(), so it must be copied if it is to be saved. NOTES
Restricted shells should not be listed in /etc/shells. SunOS 5.11 1 Nov 2007 getusershell(3C)
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