hello
have a file1
H87I
Y788O
T347U
J23U
and
file2 J23U U887Y I99U T556U
file3 I99O J99T F557J
file4 N99I T666U R55Y
file5 H87I T347U
file6 H77U R556Y E44T
file7 Y788O K98U H8I
May be using script we can use file1 to search for all the files
and have the output
H87I file5... (3 Replies)
Dear All,
I have a comma-separated file.
1. The first line of the file(header) should have 4 commas(5 fields).
2. The last line of the file should have 1 comma(2 fields).
Pls help me in checking this condition in a shell script.
And the number of lines between the first line and last... (11 Replies)
Compete noob question....
I need a script to search through a directory and find files containing text string abcde1234 for example and then copy that file with that text string to another directory
help please :eek: (9 Replies)
I want to reverse a the following:
00:11:22:33:44:55
I currently use something like below to pass it as is.
But now I want the same script to reverse the above and pass it to ethtool.
// psuedo code
i=0
skip=0
for m in $@
do
if
then
skip=1
... (1 Reply)
Hi All,
I have a sql output file has below. I want to get the values 200000040 and 1055.49 .Can anyone help me to write a shell script to get this.
ACCOUNT_NO
------------------------------------------------------------
BILL_NO ... (8 Replies)
Hello
Im new to this forums, I would like some help regarding a script that I need in order to copy some files. Heres the scenario:
I need to search several files which have a particular code inside, lets say "test" all of them on different directories. I need to copy all of them on a new... (4 Replies)
Hi,
In shell script, I have a variable var = xyz, inn, day, night, calif ....n and I would like to read them in to var1 = xzy, var2 = inn, var3= day, var4 = night....var.
probably in a loop. I would like to read the variables until end of the line. Comma is the delimiter and there's no comma at... (3 Replies)
Have to read one file say sourcefile containing several words and having another folder containing several files.
Now read the first word of Sourcefile & search it into the folder consisting sevral files, and create another file with result. We hhave to pick the filename of the file in which... (3 Replies)
Hello All
I have a pattern.txt file in source directory ((/project/source/) in linux server and data looks like:
123abc17
234cdf19
235ifg20
I have multiple log files in log directory (/project/log/) in linux server and data for one log file looks like:
<?xml version="1.0" processid... (11 Replies)
I have a text file which is generated when the batch job is run. This batch may take few mins to run. When completed, the last line of the text file would be process completed. I need a shell script which will wait for this file till the process completed is printed in it, once found, it would move... (2 Replies)
Discussion started by: Lalat
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)