The "normal way" works properly for me ahamed. I appreciate your help here. I'll finish out my script and do a test run on a duplicate of the folder of html files. I shall post my results. Thank you very much.
I am iterating record by record through a file as below,
A,B
A,C
A,D
B,E
B,F
E,G
E,H
The same file should look like in the final output as below,
A,B
B,E
E,G
E,H
B,F
A,C
A,D (10 Replies)
Hi all,
I need to insert new text and change existing text in a file. For that I used the below line in the command line and got the expected output.
sed '$a\
hi...
' shell > shell1
But I face problem when using the same in script. It is throwing the error as,
sed: command garbled:... (4 Replies)
Hi ,
This is my first thread ; facing some issues withmy sed script
I need to insert the code from my log file which is between two keywords.
content is like this ........
log
############################
log1 log2
231 "Ban" "tom" and the line one of the cross line
friend... (2 Replies)
Hi All ,
Given a file , I need to delete , modify and insert lines matching certain patterns in that file using shell scripting.
e.g. If a file FILE1 has following content :
CUST.ABC.DEF = CUST.ABC.DEF * CUST.ABC.DEF
PRINTF(CUST.ABC.DEF)
CUST.ABC.DEF = mid(CUST.ABC.DEF,10.34)... (5 Replies)
Hi,
For the text file let us say t.txt having the statements as below.
filename : t.txt.
Contents :
This is first string1
This is first string2
This is first string3
The output of the file should have newline. How to introduce the new line so that the output be as follows
... (5 Replies)
Hello,
I have two text files (txt1 and txt2). txt1 contains many lines with a single number in each line. txt2 (xml format) contains information about the numbers given in txt1. I need to insert one line in txt2 within the scope of each number taken from txt1.
Sample problem:
txt1:
12
23... (1 Reply)
I have a huge file with record length around 5000 characters.
There is an ETL tool datastage which is writing this data to the file(AIX server). At position 4095 i have seen NULL Character(^@).
when i am using this command "head -1 file_nm | sed 's/\000//g'" --- the output is displaying... (3 Replies)
Hi There,
I am trying to load data from a csv file into a DB during our DB migration phase. I am successfully able export all data into a .csv file but those have to rewritten in terms insert statement which will allow for further population of same data in different DB
My exiting csv record... (6 Replies)
I have a script which is extracting data from a database in an excel file in below given format,
date_time calling_app1 count of requests
date calling_app x 34
date calling_app y 1034
I want to write a script which will write data into a file like this ... (3 Replies)
Discussion started by: TNT47
3 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)