Location: Saint Paul, MN USA / BSD, CentOS, Debian, OS X, Solaris
Posts: 2,288
Thanks Given: 430
Thanked 480 Times in 395 Posts
Hi.
The GNU grep can easily do this. However, AT&T offers cgrep which also can do "context" printing. One might want to use this approach for files that are large enough so that shell scripts might be too slow, or where you need additional features:
Producing on your data in file "data1":
The AT&T source for cgrep is available at: cgrep home page -- I had no trouble downloading and compiling it on GNU/Linux, but I cannot vouch for HPUX.
It is a very useful command that can take on jobs that GNU grep normally does, plus a lot more. Best wishes ... cheers, drl
Yuk! That won't work at all. It assumes that the search term "string" is found only once in the datafile. If it is found more than once, then $val will have a multi-line and cause any 'expr $val' to fail with a syntax error.
I have a file where every line includes four expressions with a caret in the middle (plus some other "words" or fields, always separated by spaces). I would like to extract from this file, all those lines such that each of the four expressions containing a caret appears in at least four different... (9 Replies)
Ok I would like to do the following
file test contains the following lines. between the lines ABC there may be any amount of lines up to the next ABC entry.
I want to grep for the filename.txt entry and print the lines in between (and including that line) up to and including the last line... (3 Replies)
Hi ,
i have a file with data as below.This is same file. But actual file contains to many rows.
i want to search for a string "Field 039 00" and delete that line and previous 3 lines in that file.. Can some body suggested me how can i do using either sed or awk command ?
Field 004... (7 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
What's the easiest way to search a file for a specific string and then look for other instances after that? I want to search for all Virtual Hosts and print out the Server Name and Document Root (if it has that info), while discarding the rest of the info.
Basically my file looks like this:
...... (6 Replies)
I have a file with the below format,
GS*8*****
ST*1********
A*
B*
E*
RMR*123455(This is the unique number to locate this row)
F*
SE*1***
GE**
GS*9*****
ST*2
H*
J*
RMR*567889(This is the unique number to locate this row)
L*
SE*
GE***** (16 Replies)
I am parsing a nagios config, searching for a string, and then printing the line 2 lines later (the "members" string). Here's the data:
define hostgroup{
hostgroup_name chat-dev
alias chat-dev
members thisisahostname
}
define hostgroup{
... (1 Reply)
I have a textfile containing text similar to the following pattern:
STRING1
UNIQUE_STRING1
STRING2
STRING3
STRING4
STRING5
STRING1
UNIQUE_STRING2
STRING2
STRING3
STRING4
STRING5
STRING1
UNIQUE_STRING3
STRING2
STRING3 (6 Replies)
Hi friends,
I am looking for a line to find a particular string in my file and once found then replace with 2-3 blank lines before the string
Example:
aaa 11 bbb
1
2
3
aaa 22 bbb
4
5
6
Output (4 Replies)
I am trying to create a script to search for a string within a file, and if found, return the next two lines.
Example file:-
msj
mh
query
return this 1
return this 2
mjk
mhj
query
return this 3
return this 4
So the script would identify the string "query" and then return the lines... (10 Replies)