02-22-2010
cat file.txt | sed '/noun1/,/noun2/!d' | grep ERROR
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi Everyone,
I have 1.txt
1
6-6
3-3
word
y
f
6-6
word
5-5
4
5-5
word
The output should be:
3-3 (8 Replies)
Discussion started by: jimmy_y
8 Replies
2. Shell Programming and Scripting
hello
im new here so i want to say hi everybody :)
i have to write a script and im newbie :/ i hope that in this forum are many ppl who knows subject :)
i have hundrets folders. in each folder is a file name trace.txt. each trace.txt has a lot of tracert's results separates with "-----" it... (6 Replies)
Discussion started by: michael8484
6 Replies
3. Shell Programming and Scripting
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
19900107 12 144 129 0.7380047
19900108 12 168 129 0.3149017
19900109 12 192 129 3.2766666E-02
... (3 Replies)
Discussion started by: Wynner
3 Replies
4. Shell Programming and Scripting
consider the input file which i am dealing with looks like this..
#cat 11.sql
create table abc (
.
.
.
) engine=Innodb ;
.
.
etc
.
.
.
create table UsM (
blah
blah
blah
) engine=Innodb ; (5 Replies)
Discussion started by: vivek d r
5 Replies
5. UNIX for Dummies Questions & Answers
Sample File
abc
xyz
def
abc
ggh
abc
xyz
I just created a sample file above to show what I need. I need to grep two lines. e.g abc and xyz(only if they are one after the other) so output would be
abc
xyz
abc
xyz
(note abc followed by ggh line would not come out in the output). I... (9 Replies)
Discussion started by: ran123
9 Replies
6. UNIX for Advanced & Expert Users
I have a "main" file which has blocks of data for each user defined by tags BEGIN and END.
BEGIN
ID_NUM:24879
USER:abc123
HOW:47M
CMD1:xyz1
CMD2:arp2
STATE:active
PROCESS:id60
END
BEGIN
ID_NUM:24880
USER:def123
HOW:4M
CMD1:xyz1
CMD2:xyz2
STATE:running
PROCESS:id64
END (7 Replies)
Discussion started by: grep_me
7 Replies
7. Shell Programming and Scripting
I want to process a file block by block using sed, and if that block does not contain two patterns, then that complete block has to be printed.
See below for the example data.
................................server 1...............................
running process 1
running... (8 Replies)
Discussion started by: Kesavan
8 Replies
8. Shell Programming and Scripting
I have file, test.txt
UtranCellId MDN407WI1
administrativeState 1 (UNLOCKED)
aseDlAdm 500
aseUlAdm 800
cellReserved 1 (NOT_RESERVED)
dlCodeAdm ... (6 Replies)
Discussion started by: radius
6 Replies
9. Shell Programming and Scripting
Hi I would appreciate your help with this.
I have a output file from a command. It is broken based on initial of the users. Exmaple of iitials MN & SS. Under each section there is information pertaining to the user however each section can have different number of lines. MY challenge is to ... (5 Replies)
Discussion started by: mnassiri
5 Replies
10. Shell Programming and Scripting
Hi all,
I have two files.
File A looks like this:
abkhasian com|hum
accent com|com|com|com|sta
acceptation act|com|sta
adventures com|hum
adversity com|hum|hum
and File B looks like this:
adventure
adventures
adversary
Adverse
adversity
I want to print those lines in File A... (9 Replies)
Discussion started by: owwow14
9 Replies
LEARN ABOUT DEBIAN
unbuffer
UNBUFFER(1) General Commands Manual UNBUFFER(1)
NAME
unbuffer - unbuffer output
SYNOPSIS
unbuffer program [ args ]
INTRODUCTION
unbuffer disables the output buffering that occurs when program output is redirected from non-interactive programs. For example, suppose
you are watching the output from a fifo by running it through od and then more.
od -c /tmp/fifo | more
You will not see anything until a full page of output has been produced.
You can disable this automatic buffering as follows:
unbuffer od -c /tmp/fifo | more
Normally, unbuffer does not read from stdin. This simplifies use of unbuffer in some situations. To use unbuffer in a pipeline, use the
-p flag. Example:
process1 | unbuffer -p process2 | process3
CAVEATS
unbuffer -p may appear to work incorrectly if a process feeding input to unbuffer exits. Consider:
process1 | unbuffer -p process2 | process3
If process1 exits, process2 may not yet have finished. It is impossible for unbuffer to know long to wait for process2 and process2 may
not ever finish, for example, if it is a filter. For expediency, unbuffer simply exits when it encounters an EOF from either its input or
process2.
In order to have a version of unbuffer that worked in all situations, an oracle would be necessary. If you want an application-specific
solution, workarounds or hand-coded Expect may be more suitable. For example, the following example shows how to allow grep to finish pro-
cessing when the cat before it finishes first. Using cat to feed grep would never require unbuffer in real life. It is merely a place-
holder for some imaginary process that may or may not finish. Similarly, the final cat at the end of the pipeline is also a placeholder
for another process.
$ cat /tmp/abcdef.log | grep abc | cat
abcdef
xxxabc defxxx
$ cat /tmp/abcdef.log | unbuffer grep abc | cat
$ (cat /tmp/abcdef.log ; sleep 1) | unbuffer grep abc | cat
abcdef
xxxabc defxxx
$
BUGS
The man page is longer than the program.
SEE ALSO
"Exploring Expect: A Tcl-Based Toolkit for Automating Interactive Programs" by Don Libes, O'Reilly and Associates, January 1995.
AUTHOR
Don Libes, National Institute of Standards and Technology
1 June 1994 UNBUFFER(1)