grep using date format

Shell Programming and Scripting
1

i have a process ruuning

root 843786 835648 0 Nov 10 - 0:31 java
root 860340 1 0 Nov 11 - 0:31

then how to grep this using date above

i have written a script
----------------------------
#!/bin/ksh

a=`date +"%m-%d"`
ps | grep root | grep "$a" >> file1
------------------------------------------------

but not getting anything in file1,
plz tell me how to grep this process using the above date and put in file1

2

Try

a=`date +"%b-%d"`

%m returns the month number not the abreviated month name

3

still not gettin the contents in file "dates"

-------------------------------------------------------------

#!/bin/ksh

a=`date +"%b-%d"`
ps | grep root | grep $a >> dates
--------------------------------------------------------------
these are the process :

root 3694688 7503998   0   Nov 03      -  0:12 /usr/bin/iostat -d 30 
root 7200814 7503998   0   Nov 03      -  0:08 ./ifstat 30 10 
root 7209086       1       0   Jun 14      -  4:20 /usr/sbin/cron 
root 7503998 3117144   0   Nov 03      -  1:11 ./stat_daemon 9 
root 7663756 7503998   0   Nov 03      -  2:10 ./nfs_stat AIX 30

----------------------------------------------------------------------
can u tell me how to grep the process acording to the above dates .
Actually i m able to create the file "dates" but its empty.............
i think some problem lies in my script in

a=`date +"%b-%d"`

4

Just execute the date command you are using and compare its output to what you are trying to match (does it have a "-" in it?).
Also, check which options you are trying to print in your date (use the command "man date").

5

the date is like "nov 23"

how to grep this

6

try to use this code

#!/bin/ksh
a=`date +"%b %d"`
ps -ef | grep root | grep "$a"

7

Your command

a=`date +"%m-%d"`

has a "-" between the month and the date, but you are trying to match it to something that has a space there.

So

a=`date +"%m %d"`

should work.

8

i have the process:
----------------------------------------------------------------------

pipe 7151638 1482862   5 12:17:13      - 21:05 java -D_AppName=DBSyncControllerRerun com.eMeter.dbsync.server.DBSyncServer /home/pipe/conf/appProperties/DBSyncControllerRerun.properties

pipe 1749064 983078 0 04:17:44 pts/1 0:00 grep java
-----------------------------------------------------------------------
and the script
#!/bin/ksh

for i in DBSyncControllerRerun
do
a=0
a=`date +"%T"`
ps -aef | grep java | grep $a >> dates
done

----------------------------------------------------------------------

i want to grip the process using time as 12:17:13. but this script not able to function properly,,,,,,,,,,,,,,,.this time is the strating time of that process.
the o/p of this its showing is

pipe 1749064 983078 0 04:17:44 pts/1 0:00 grep java

but i want this o/p

pipe 7151638 1482862 5 12:17:13 - 21:05 java -D_AppName=DBSyncControllerRerun com.eMeter.dbsync.server.DBSyncServer /home/pipe/conf/appProperties/DBSyncControllerRerun.properties

9

A useful debug method is to echo the variables (eg. echo "$a"), so you can see what they actually are.
Alternatively, you can run your script with the shell "-x" option (eg. sh -x myscript).