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Retreive string between two chars

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Top Forums Shell Programming and Scripting Retreive string between two chars
# 22  
Old 06-25-2007
Quote:
Originally Posted by danland
Can you please explain what the option represent???

I ran the command but i get the wrong line

// before adding the change
[root@acc3 imi]# grep LOGIN * | grep 972525403496
IMI_acc3_070625_0055.log:IMI|DEBUG|25.06.2007 10:48:48|10580|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\ariel_nackash\3 CMV\ALLfXkZdbKB6o_cU7s2c89bwK9vg8N4VwR5MP84Rg92lR3Bv36eBsA--]
IMI_acc3_070625_0055.log:IMI|DEBUG|25.06.2007 10:52:17|10591|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\arieln14@fastmail.fm\4 CMV\cine99matic]
IMI_acc3_070625_0056.log:IMI|DEBUG|25.06.2007 10:59:59|10601|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\mobilemailqa138\1 CMV\testing]
IMI_acc3_070625_0057.log:IMI|DEBUG|25.06.2007 11:02:21|10607|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\mobilemailqa138\1 CMV\testing]
IMI_acc3_070625_0058.log:IMI|DEBUG|25.06.2007 11:03:51|10608|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\mobilemailqa138\1 CMV\testing]
grep: imi.server.sock: No such device or address

// after writing what you recommended.

[root@acc3 imi]# grep LOGIN * | grep 972525403496 | sed -n 'N;${P;q;};D'
grep: imi.server.sock: No such device or address
IMI_acc3_070625_0057.log:IMI|DEBUG|25.06.2007 11:02:21|10607|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972525403496:0:0\mobilemailqa138\1 CMV\testing]

as you can see i am getting the wrong line. can you please explain what the options mean so i could try to understand by myself....

Thx,
Daniel
Code:
grep LOGIN * | grep 972525403496 > tmp
sed -n 'N;${P;q;};D' tmp

n option suppreses the default output of the sed command
N get next line and append to line in the pattern space
$ represent last line of file
${P;q;} If the current line read is the last line of the file then print the first line in the pattern space and quit the sed command
D delete the first line in the pattern space
# 23  
Old 06-25-2007
Thank you very much for your assitance and useful information.
It helped me a lot!!!!

Sincerely.
Daniel
# 24  
Old 06-25-2007
Appending
Hi again,
I am now tring to append a text that is written in file1 into file2.
is there a command in shell that enables such thing?
# 25  
Old 06-25-2007
New question , new thead !
And give us more informations (input and output files formats and samples)
# 26  
Old 06-25-2007
Quote:
Originally Posted by danland
hello everyone again,
I have a little problem.
When i am running a 'grep' ( 'grep LOGIN *' ) on some log files (each new line is represented by a file called IMI_acc3_**.log. as you can see i get 5 lines that contain same fields but different data , for instance:
"
IMI_acc3_070625_0055.log:IMI|DEBUG|25.06.2007 10:48:48|10580|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972V\ALLfXkZdbKB6o_cU7s2c89bwK9vg8N4VwR5MP84Rg92lR3Bv36eBsA--]
IMI_acc3_070625_0055.log:IMI|DEBUG|25.06.2007 10:52:17|10591|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972fm\4 CMV\cine99matic]
IMI_acc3_070625_0056.log:IMI|DEBUG|25.06.2007 10:59:59|10601|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972CMV\testing]
IMI_acc3_070625_0057.log:IMI|DEBUG|25.06.2007 11:02:21|10607|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972CMV\testing]
IMI_acc3_070625_0058.log:IMI|DEBUG|25.06.2007 11:03:51|10608|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972CMV\testing]
grep: imi.server.sock: No such device or address".

Now how can i extract the one before the last line "IMI_acc3_070625_0058.log:IMI|DEBUG|25.06.2007 11:03:51|10608|1073802272| : IMAP COMMAND RECV: [ABCD0 LOGIN 972CMV\testing]"

is it possible to do it with 'awk' command ?

Code:
awk '/LOGIN/ { last = line; line = $0 } END { print last }' *

This may be faster if there is a large amount of input:

Code:
grep LOGIN * | awk '{ last = line; line = $0 } END { print last }'
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