Sponsored Content
Full Discussion: Time comparison
Top Forums Shell Programming and Scripting Time comparison Post 302282326 by jim mcnamara on Friday 30th of January 2009 02:24:55 PM
Old 01-30-2009
Here is one approach which works across midnight time change-
Code:
#!/bin/ksh

filetime()  # file time in epoch seconds
{
    perl  -e '          
          print (stat $ARGV[0])[9];
         ' $1
}

istooold()  # return 0 if too old, 1 if okay
{
	now=$(date +%s)       # epoch time in seconds
	ftime=$(filetime "$1")   # file age in seconds
	now=$( now - 1800 )   # 30 minutes ago 
	if [[ $ftime -ge $now ]] ; then
		print 1
	else
	    print 0
	fi	
}

for filename in  $(ls log)
do
	ok=$( istooold $filename)
	if [[ ok -eq 1 ]] ; then
	   echo "$filename is okay"
	else
	   echo "$filename is too old"
	fi   
done

 

9 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

File Time Comparison Question

I want a cron job to fire off every 5 minutes or so to verify that a file in a directory is not more than 15 minutes old (from the current time. If the newest file is more than 15 minutes old, I would fire off an email.. The email part is easy, but I'm having trouble figuring the logic... (2 Replies)
Discussion started by: pc9456
2 Replies

2. Shell Programming and Scripting

Newbee Needs Help - Time comparison

I am very new to Unix so please bear with me! I am trying to write a script that will compare file creation time with the current time so I can be notified if a file is more than an hour old. Can anybody point me in the right direction on this??? Thank you in advance for any help!!! It is GREATLY... (4 Replies)
Discussion started by: danedder
4 Replies

3. Shell Programming and Scripting

Help with time comparison shell script for HP-UX

I am using Korne Shell in HP-Ux. Can someone give me and idea on how I can write a shellscript on how to do this please:- On our HP-UX server, a batch file is run every evening at about 6:30pm. The first step of this batch file will touch an empty "flag" file to indicate that the batch has... (6 Replies)
Discussion started by: gummysweets
6 Replies

4. Shell Programming and Scripting

Files manipulation with time comparison

Hi guys - I am new to Unix and learning some basics. I have to create a report of files that are in a specific directory and I have to list filenames with specific titles. This report will be created everyday early in the morning, say at 05:00 AM. (see output file format below) The 2 categories... (2 Replies)
Discussion started by: sksahu
2 Replies

5. Shell Programming and Scripting

Date comparison in file to system time

I have a CSV (comma separated vaule) file whose entries resemble Area,\\ntsvsp02\vmcs\download\files\Areas.dat,1,20090303,0,Import Complete,2009-03-02 04:23:00 Product,\\ntsvsp02\vmcs\download\files\items.dat,1,20090303,0,Import Complete,2009-03-02 04:23:00... (3 Replies)
Discussion started by: zainravi
3 Replies

6. Shell Programming and Scripting

System time comparison to fixed defined time

I have a requirement of checking the current system time and performing certain actions in a shell script. example: if the current system time is greater than 1400 hrs, then perform step 1,2,3 if the current system time is greater than 1000 hrs, then perform step 1,2 if the current system time... (2 Replies)
Discussion started by: zainravi
2 Replies

7. Homework & Coursework Questions

Date comparison with 'string date having slashes and time zone' in Bash only

1. The problem statement, all variables and given/known data: I have standard web server log file. It contains different columns (like IP address, request result code, request type etc) including a date column with the format . I have developed a log analysis command line utility that displays... (1 Reply)
Discussion started by: TariqYousaf
1 Replies

8. Shell Programming and Scripting

File modification time comparison

Hi All, I have two files (given below) each exists under different paths. I want to compare the modification time stamp of file1.txt is lessthan the modification time of file2.txt. month1=`ls -l file1.txt | awk '{ print $6}'` date1=`ls -file1.txt | awk '{ print $7}'` time1=`ls... (1 Reply)
Discussion started by: Arunprasad
1 Replies

9. Shell Programming and Scripting

Date and Time comparison using shell script

Hi, I'm having two fields in the file F1|F2 20111220|102000 F1 ->YYYYMMDD F2 ->HHMMSS Now, I need to compare this with current date & time and need to return the difference value in hours. Already, I checked with datecalc from the forum. So, need hints from Shell Gurus. Thanks (10 Replies)
Discussion started by: buzzusa
10 Replies
chsh(1) 						      General Commands Manual							   chsh(1)

NAME
chsh - change default login shell SYNOPSIS
login-name [shell] login-name [shell] login-name [shell] login-name [shell] DESCRIPTION
The command changes the login-shell for a user's login name in the repository (see passwd(1)). The DCE repository is only available if Integrated Login has been configured; see auth.adm(1M). If Integrated Login has been configured, other considerations apply. A user with appropriate DCE privileges is capable of modifying a user's shell; this is not dependent upon superuser privileges. If the repository is not specified (as in [login-name]), the login shell is changed in the file only. Run after running to make sure the information was processed correctly. Notes The command is a hard link to the command. When is executed, actually the command gets executed with appropriate arguments to change the user login shell in the repository specified in command line. If no repository is specified, the login shell is changed in the file. Arguments login-name A login name of a user. shell The absolute path name of a shell. If the file exists, the new login shell must be listed in that file. Otherwise, you can specify one of the standard shells listed in the getusershell(3C) manual entry. If shell is omitted, it defaults to the POSIX shell, Options The following option is recognized: Specify the repository to which the operation is to be applied. Supported repositories include and Security Restrictions You must have appropriate privileges to use the optional login-name argument to change another user's login shell. NETWORKING FEATURES
NFS File can be implemented as a Network Information Service (NIS) database. EXAMPLES
To change the login shell for user to the default: To change the login shell for user to the C shell: To change the login shell for user to the Korn shell in the DCE registry: WARNINGS
If two or more users try to write the file at the same time, a passwd locking mechanism was devised. If this locking fails after subse- quent retrying, terminates. AUTHOR
was developed by HP and the University of California, Berkeley. FILES
SEE ALSO
chfn(1), csh(1), ksh(1), passwd(1), sh(1), sh-posix(1), getusershell(3C), pam(3), passwd(4), shells(4). chsh(1)
All times are GMT -4. The time now is 04:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy