Shell Programming and Scripting

Hi

How to compare created or modified date of two files

help needed

thanks
Vajiramani

what exactly are you trying to achieve here

you can check this way

Code:

-rw-rw-r--    1 kanth    kanth           0 Feb 24 11:33 created_file
-rw-rw-r--    1 kanth    kanth           0 Feb 24 11:33 modified_file

suppose you have two file as above...

take 6,7 and 8th column and compare it by using "if" conditions

Code:

create=`ls -lrt created_file | awk '{print $6$7$8}'` 
modify=`ls -lrt modified_file |awk '{print $6$7$8}'`

U can use find command .
it has various options
-mtime 3 --to find files modified exactly 3days ago
-mtime +3 --to find files modified more than 3days
-mtime -3 --to find files modified within 3days

similarly
u have
-atime,-ctime and -newer etc

Thank u its help full.

Actually what i want to trying to do is getting some parameters as command line arguments while running a shell script and use it. Then with this i need to delete files from a directory if its exceeding the count 7.

The above command will delete wat ever the specified date interval. Its also in away good but i need exactly 7 files in the directory even if i don't generate one file for a day.

Now i need how to get command line parameters to be used int he script

Thanks again

Code:

scpt
###########
echo $1  # Gives the first argument
echo $2  # Gives the second argument
echo $3  # Gives the third argument
###########

Call the scpt with three arguments

Code:

script arg1 arg2 arg3

If you pass more than 9 arguments, then use brace

Code:

echo ${10}
echo ${11}

If your string argument contain spaces then use double quotes

Code:

scpt "hi buddy" arg2 arg3

Hi dears

its helpful

Thank you