Sponsored Content
Top Forums UNIX for Dummies Questions & Answers Does 'grep' update a file's access date/time? Post 302821399 by Scott on Friday 14th of June 2013 01:05:12 PM
Old 06-14-2013
Yes, they would affect the access time, but not the modification time.
Code:
$ ls -lu file
-rw-r--r--  1 scott  staff  157 14 Jun 17:37 file
$ grep x file
$ ls -lu file
-rw-r--r--  1 scott  staff  157 14 Jun 19:03 file

 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

file access inode update

When is a file "accessed" according to UNIX? For example: gzipping a file will not change the access time. (1 Reply)
Discussion started by: dangral
1 Replies

2. Shell Programming and Scripting

grep time and date

Hi, I have a file which is a result of a script running every two minutes. What I wanted to do is to grep a specific date and time (hour and minute) from the file and then count the occurance of 201. I need to get the result of occurance of 201 every 5 minutes. What should I include in my... (8 Replies)
Discussion started by: ayhanne
8 Replies

3. Shell Programming and Scripting

Processing a log file based on date/time input and the date/time on the log file

Hi, I'm trying to accomplish the following and would like some suggestions or possible bash script examples that may work I have a directory that has a list of log files that's periodically dumped from a script that is crontab that are rotated 4 generations. There will be a time stamp that is... (4 Replies)
Discussion started by: primp
4 Replies

4. Shell Programming and Scripting

grep to show date/time of file the string was found in.

I've seen several examples of grep showing the filename the string was found in, but what I really need is grep to show the file details in long format (like ls -l would). scenario is: grep mobile_number todays_files This will show me the string I'm after & which files they turn up in, but... (2 Replies)
Discussion started by: woodstock
2 Replies

5. Shell Programming and Scripting

Show date/time with tail|grep command

Hi, I have a log file without date/time, and I want that everytime tail|grep find something it displays the date/time and the line. I have tried something like this command but without any luck to display the date/time: tail -F catalina.out | sed "s/^/`date `/" | egrep ... (6 Replies)
Discussion started by: julugu
6 Replies

6. Shell Programming and Scripting

grep - date & time range

Hi, I need to search email files by date & time range in email files. The timezone is not important. Can someone plz advise how i can do this ? For e.g A user can specify only A single date A date range date & time range Below is part of the email file. (4 Replies)
Discussion started by: coolatt
4 Replies

7. Shell Programming and Scripting

how to update date part with new increment date time

hi experts, my requirement is like this i need to develop a shell script to update date part with new incremental date time in file some 'X' which is kept at some server location incrementing every two hours.as i am new to this scripting i need support from u people,thanx in advance (1 Reply)
Discussion started by: amanmro
1 Replies

8. Shell Programming and Scripting

Grep the Content of a LOG File which has latest Date and Time

Hi All, Need a small help. I have a log file which keeps updating for every Minute with multiple number of lines. I just want to grep few properties which has latest Date and Time to it. How do i do it? I wanted to grep a property by name "Reloading cache with a maximum of" from the... (4 Replies)
Discussion started by: nvindraneel
4 Replies

9. UNIX Desktop Questions & Answers

grep a range of time & date

how can i grep a range? i have a text file with the following text: result.log.00:2012/01/02 12:00:07.422 LOG STARTED HERE N6Kashya29MemoryShieldScheduler_AO_IMPLE, pid=8662/8658, config=(alertThreshold=10,alertLevel=0,killThreshold=7200,coreThreshold=0,full=1), deltaTime=0,... (1 Reply)
Discussion started by: boaz733
1 Replies

10. Shell Programming and Scripting

Access log field - using awk to pull date/time

hey guys. the following line is a line taken from apache's access_log 10.10.10.10 - jdoe "GET /images/down.gif HTTP/1.1" 304 I'm concerned about the field that has the date and time in it. if assuming the delimiter in the file is a space, then the fourth field will always have the date... (5 Replies)
Discussion started by: SkySmart
5 Replies
lchage(1)						      General Commands Manual							 lchage(1)

NAME
lchage - Display or change user password policy SYNOPSIS
lchage [OPTION]... user DESCRIPTION
Displays or allows changing password policy of user. OPTIONS
-d, --date=days Set the date of last password change to days after Jan 1 1970. Set days to -1 to disable password expiration (i.e. to ignore --mindays, and --maxdays and related settings). Set days to 0 to enforce password change on next login. (This also disables password expiration until the password is changed.) -E, --expire=days Set the account expiration date to days after Jan 1 1970. Set days to -1 to disable account expiration. -i, --interactive Ask all questions when connecting to the user database, even if default answers are set up in libuser configuration. -I, --inactive=days Disable the account after days after password expires (after the user is required to change the password). Set days to -1 to keep the account enabled indefinitely after password expiration. -l, --list Only list current user's policy and make no changes. -m, --mindays=days Require at least days days between password changes. Set days to 0 or -1 to disable this requirement. If this value is larger than the value set by --maxdays, the user cannot change the pasword. -M, --maxdays=days Require changing the password after days since last password change. Set days to -1 to disable password expiration. -W, --warndays=days Start warning the user days before password expires (before the user is required to change the password). Set days to 0 or -1 to disable the warning. EXIT STATUS
The exit status is 0 on success, nonzero on error. NOTES
Note that "account expiration" (set by --expire) is distinct from "password expiration" (set by --maxdays). Account expiration happens on a fixed date regardless of password changes. Password expiration is relative to the date of last password change. libuser Nov 8 2012 lchage(1)
All times are GMT -4. The time now is 10:21 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy