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Easy About Bash Script function

 
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# 1  
Old 04-01-2009
Bug Easy About Bash Script function
Hi to all,

first of all,i am working on MINIX 3 OS.
I want to create a bash script file,which will create a list of files(not directories) that have been modified one specific day (i.e today) under my home directory.

thank you very much!! Smilie
# 2  
Old 04-01-2009
Look at the man pages for "find" command. Roughly what you're looking for:

#!/bin/bash
find $HOME -daystart -ctime 0 -type f >files_today.list # files modified today
find $HOME -daystart -ctime 1 -type f >files_yesterday.list # files modified yesterday

I'm not sure that "daystart" may be a Linux extension. If your OS doesn't support it, you can still accomplish this with ctime piped into a grep. My OS has date field in format "Mon dd" where dd is two-digit day with no leading zero. So April 1st would be:
"Apr 1" (i.e., two spaces between r and 1). So I would do:

#!/bin/bash
find $HOME -ctime 0 -type f | grep "Apr 1" >files_today.list
find $HOME -ctime 0 -type f | grep "Mar 31" >files_yesterday.list
find $HOME -ctime 1 -type f | grep "Mar 31" >>files_yesterday.list
# 3  
Old 04-01-2009
hi marcus!

with this line:

find $HOME -daystart -ctime 0 -type f >files_today.list # files modified today

you take the list with the files modified today or also the files that are created today?which is the parameter that ensure this?Smilie
# 4  
Old 04-01-2009
Broken down
Code:
$ find \      # Command
  $HOME \     # Directory
  -daystart \ # Use the start of the day as base for time calculations
  -ctime 0 \  # ctime (Change time, either content or metadata) in the last
              # 24 hours
  -type f \   # Only regular files

# 5  
Old 04-01-2009
Quote:
Originally Posted by pludi
Broken down
Code:
$ find \      # Command
  $HOME \     # Directory
  -daystart \ # Use the start of the day as base for time calculations
  -ctime 0 \  # ctime (Change time, either content or metadata) in the last
              # 24 hours
  -type f \   # Only regular files

maybe i didn't express me so good.My question is which files are been found with this.Not since when. i.e. Just modified files or also created files?
# 6  
Old 04-01-2009
Both. Change time is always the time of the last content or metadata change. Metadata changes include file creation, renaming, moving, permissions, ...
# 7  
Old 04-01-2009
Ahhh..Ok thanks for the note..I understand now how it works.. :-)


According to this,If you want to take all the backup files that have been modified today (as marcus described good before) with the command "tar", and put them in a file *.tar, putting also the date as a name of the file...for example like Backup_of_01_04_2009.tar.. any ideas how to implement this.??? :-)

Thanks a lot!!
 
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