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Strange error: grep does not read from file

 
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Top Forums UNIX for Dummies Questions & Answers Strange error: grep does not read from file
# 15  
Old 09-20-2011
If you look at my previous posts, you will see the output where I showed you it works
# 16  
Old 09-20-2011
Code:
ran:/home/vbe $ ll -lt|grep file                                             
-rw-rw-rw-   1 vbe        bin             51 Sep 20 16:55 file2.txt
-rw-rw-rw-   1 vbe        bin             17 Sep 20 16:55 file1.txt
-rw-rw-rw-   1 vbe        bin             44 Nov 11  2010 filename
ran:/home/vbe $ cat file*txt
angie
mary
susan
angie blond
mary brunnet
susan red
christine black
ran:/home/vbe $ cat file1.txt|while read line ;do grep "$line" file2.txt;done
angie blond
mary brunnet
susan red
ran:/home/vbe $

# 17  
Old 09-20-2011
Perhaps the files processed are not in unix file format ?
Please check that.

Regards
Peasant.
# 18  
Old 09-20-2011
I suggest that the OP provide an unambiguous dump of his/her text file, using hexdump -C, od -bc, or whatever tool is available to give us a definitive manifest of the files' contents.

The following is an example of data that appears fine when sent to the terminal but thwarts grep's attempt to match it:
Code:
$ printf 'a\000bc\n'
abc
$ printf 'a\000bc\n' | grep abc
$

Also, it wouldn't hurt to post a trace of your shell's actions. Assuming you're using a posix-like shell, you can probably enable tracing with set -x (you can then disable it with set +x).

Regards,
Alister
# 19  
Old 09-21-2011
Quote:
Originally Posted by Peasant
Perhaps the files processed are not in unix file format ?
Please check that.

Regards
Peasant.
Can you please tell me how to do that?
Thank you

---------- Post updated at 03:42 AM ---------- Previous update was at 03:39 AM ----------

Maybe its better to provide my actual data to see if i find a solution
file2.txt
Code:
Les.1000.1.A1_at    BG628706
Les.1007.1.A1_at    BG628731
Les.1008.1.A1_at    BG628739
Les.1009.1.A1_at    BG628745
Les.101.1.S1_at    AJ002298.1
Les.1011.1.A1_at    BG628754
Les.1013.1.A1_at    BG628758
Les.1015.1.A1_at    BG628777
Les.1018.1.A1_at    BG628791
Les.1019.1.A1_at    BG628793
Les.102.1.S1_at    AF022874.1

file1.txt
Code:
Les.1013.1.A1_at
Les.1015.1.A1_at

---------- Post updated at 04:09 AM ---------- Previous update was at 03:42 AM ----------

There is probably something wrong with the file "encoding", originally it is an excel file from windows
# 20  
Old 09-21-2011
I get:
Code:
ran:/home/vbe $ cat file1.txt|while read line ;do grep "$line" file2.txt;done
Les.1013.1.A1_at    BG628758
Les.1015.1.A1_at    BG628777

So you do the same: do a copy paste if you can from your post, dont edit just copy /paste straight to your unix box but can you ? (Im using ReflectionX...).
 
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