Is there a way I can do this:
search for text and replace line containing matched text with a different line?
For example:
"I want to replace text"
I want to search for replace and then change the line to
I am perplexed.
Hope that makes sense.
Thanks in advance. (4 Replies)
Alright, here's the deal. I'm running the following ruby script (output follows):
>> /Users/name/bin/acweather.rb -z 54321 -o /Users/name/bin -c
Clouds AND Sun 57/33 - Mostly sunny and cool
I want to just grab the "57/33" portion, but that's it. I don't want any other portion of the line. I... (5 Replies)
Hello Friends,
Hope you are doing well.
I am writing a shell script to find out the log file which are not updated in last 1 hours. I've almost completed the script but need your help in formatting its outputs.
Currently, the output of the script is like this(as a flat row):
... (3 Replies)
What i am trying to do is pull all the "fail" and "error" from the HP-UX syslog except if it includes "sshd" or "ftpd" and IF the next line says "above message repeats NN time" display the next line.
Got some of it working with someones help with sed but Im more familiare with awk.
Trying... (4 Replies)
Hi,
I'm working with gawk (on DOS) today.
A goal is: find a string for-instance '123', cut a line in two columns and write second one. The problem is: command line works OK, awk file doesn't. But I would like to work with file because there are many strings to find.
input:
line command:
awk... (4 Replies)
Hi ,
I have the below ouput,
=====gopi=====
assasassaa
adsadsadsdsada
asdsadsadasdsa
sadasdsadsd
=====kannan===
asdasdasd
sadasddsaasd
adasdd
=====hbk===
asasasssa
....
..
I want the output like as below, not able paste here correctly. (2 Replies)
Hi All,
Facing an issue with grep & sed
I have logs as below:
gsc_1_20121121.log:2012-11-21 10:09:13,143 INFO - fmsspace.1 ProcessNewOrderSingleRequest: Result - ProcessNewOrderSingleBatchResultDTO - success:true,newOrderSingleBatchResults:ProcessNewOrderSingleResultDTO -... (13 Replies)
Hello all,
I wget a file and i tried to display some value :
content=$(wget IP:9005/GlobalStatistics -q -O -)
echo onlineusers $content > /home/active_session_log
#cat active_session_log
{"ActiveSessionCount":0,"ActiveGameCount":0,"QueueMatchMakingPlayerCount":0}
My goal is write... (7 Replies)
HI all,
I have data in a file that looks like this:
1 HOW _ NNP NNP _ 3 nn _ _
2 DRUGS _ NNP NNP _ 3 nn _ _
3 ACT _ NNP NNP _ 0 null _ _
4 : _ ... (3 Replies)
Discussion started by: owwow14
3 Replies
LEARN ABOUT CENTOS
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)