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How to grep a string in todays file

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Top Forums Shell Programming and Scripting How to grep a string in todays file
# 8  
Old 04-05-2010
Code:
$
$
$ # list all files that start with "ERProcess"
$ ls -1 ERProcess*
ERProcessBD0404201099999.txt
ERProcessBD0405201099999.txt
$
$ # show the contents of yesterday's file
$ cat ERProcessBD0404201099999.txt
04/04/2010 line_1 => blah
04/04/2010 line_2 => lostER
04/04/2010 line_3 => blah
$
$ # show the contents of today's file
$ cat ERProcessBD0405201099999.txt
04/05/2010 line_1 => blah
04/05/2010 line_2 => lostER
04/05/2010 line_3 => blah
$
$ # list just today's file
$ ls -1 ERProcessBD`date '+%m%d%Y'`*.txt
ERProcessBD0405201099999.txt
$
$ # list just today's file and then grep for the word "lostER" in it
$ ls -1 ERProcessBD`date '+%m%d%Y'`*.txt | xargs grep "lostER"
04/05/2010 line_2 => lostER
$
$

tyler_durden
# 9  
Old 04-05-2010
I can create a file with this command in my system:

Code:
touch `date '+%m%d%Y'`.txt

and it give 04052010.txt

and to be able to find a pattern inside that file under a directory:
Code:
find . -type f -name `date '+%m%d%Y'`.txt -mtime -1 | xargs grep -i pattern

is this what you are looking for?
# 10  
Old 04-05-2010
Thanks Tyler. The last option you mentioned was the one i was looking for, but it didnt work!

Hi Eagle:

It gives me this error:
find: invalid predicate '- (the file name)
# 11  
Old 04-05-2010
Quote:
Originally Posted by DallasT
...The last option you mentioned was the one i was looking for, but it didnt work!
...
What's the error message that you see on your terminal ?
Can you copy/paste the part of your terminal screen where you run the command and encounter the error ?

tyler_durden
# 12  
Old 04-05-2010
Quote:
Originally Posted by DallasT
Thanks Tyler. The last option you mentioned was the one i was looking for, but it didnt work!

Hi Eagle:

It gives me this error:
find: invalid predicate '- (the file name)
try this one then:

Code:
find . -type f -name "*`date '+%m%d%Y'`.txt" -mtime -1 | xargs grep -i pattern

# 13  
Old 04-05-2010
Hi Eagle: I get this error:

ERProcessBD04052010*.txt: No such file or directory

Hi Tyler, once i execute the command, it just sits and nothing happens.

I would also want to inform that there are 2 files from todays date in the same folder. They both are duplicates of each other. I wouldnt care which one does the command read, it can be either of the two. They both however have the same naming convention but are named differently.
# 14  
Old 04-05-2010
Try this one, it should work like this:

Code:
find . -type f -name "ERProcessBD`date '+%m%d%Y'`*" -mtime -1 |  xargs grep "lostER"

or
Code:
find . -type f -name "ERProcessBD`date '+%m%d%Y'`*" |  xargs grep "lostER"
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