:confused: Hi i am a noob and need a little help to finish my shell script. I am learning as i go but hit a problem.
I am search thorugh logs(*.rv) files to find entires between two user defined dates,
The script so far looks for the "START" and "END" of each entry at sees if it belongs To... (0 Replies)
Hello,
I have a file which has a range of date like:
00:00 test
00:01 test2
00:02 test3
00:03 test4
00:04 test5
00:05 test6
Using input (stdin) i would like to parse the data 00:01 to 00:04. The output file should be like this:
00:01 test2
00:02 test3
00:03 test4
00:04 test5
... (5 Replies)
I am new to Unix so will really appreciate if someone can guide me on this.
What I want to do is:
Step1: Read binary file - pick first 2 bytes, convert from hex to decimal. Read the next 3 bytes as well.
2 bytes will specify the number of bytes 'n' that I want to read and write... (1 Reply)
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)
Hi,
I am able to write an awk program that fits using the chi squared minimization method for each number is a data column... but I am wondering if it is possible to do that for a range of numbers at the same time.
If I have a column for the observed data... and then say 10 columns for... (13 Replies)
Hi,
Currently I am working on a script to automate the process of converting the log file from binary into text format. To achieve this, partly I am depending on my application’s utility for this conversion and the rest I am relying on shell commands to search for directory, locate the file and... (5 Replies)
I have a data in a file called SCHED which has 5 columns: sched no, date, time, place and remarks. The image is shown below.
http://dl.dropbox.com/u/54949888/Screenshot%20from%202013-01-02%2002%3A42%3A25.png
Now, I want to display only the schedules which fall under a certain date range which... (2 Replies)
Hi All,
I have the file in following format. I need to change column 16 and column 17 for those lines which has atleast one numerical digit in column 2 , with the exception on SUPP1
Input file :
S00005615|1044|0|0.00|0|0.00| |112|-30|28.1|0|0| |20130331|220.2|2|3|... (2 Replies)
Hi, im trying to write a grep script that returns me the last inputs added in the last hour in the log file. Literally i have nothing yet but:
grep 'Line im looking for' LOGFILE.log | tail -1
this only gives me the last input, but no necessarily from the last hour.
Help Please. (4 Replies)
I was searching for parsing a log file and found what I need in this link
http://stackoverflow.com/questions/7575267/extract-data-from-log-file-in-specified-range-of-time
But the most useful answer (posted by @Kent):
# this variable you could customize, important is convert to seconds.
# e.g... (2 Replies)
Discussion started by: kingk110
2 Replies
LEARN ABOUT DEBIAN
expect_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)