Good day,
I'm new to linux environment...Is there any scripts available for me to check ports (lets say port 80 and 21) through shell with just a single commandline?
Any response is very much appreciated..
thanks (4 Replies)
hi ,
i m trying to run bash scrip automaticially but i dont know how i can do this an anybody tell me how i can autorun shell script when i logon .
thanks (9 Replies)
i have a script which has 2 options.
a
b
And a has 6 sub options.
i want to write a script which will call the parent script and give options automatically.
examle:
linasplg11:/opt/ss/kk/01.00/bin # startup.sh
/opt/ss/rdm/01.00
Please select the component to... (2 Replies)
Hi
In TOAD I can write SQL code, then select the SQL code
-> Menu Edit -> Format Code
The output is well formatted code (correct indent, ...)
Is there a tool (for Windows and/or UNIX) what can do the same for bash code?
TOAD (software) - Wikipedia, the free encyclopedia (1 Reply)
I am new to shell scripting and need to write a program to copy files that are posted as links on a specific url. I want all the links copied with the same file name and the one posted on the webpage containing the url onto a specific directory. That is the first part. The second part of the script... (2 Replies)
Hi,
I am having issues trying to figure out how to rename files like this:
TEST1_B.tt
To
SQP_CAN_B.tt
I have hundreds of files like those, I need to rename them automatically.
Any help will be greatly appreciated.
Thanks, (5 Replies)
Hi, What will be the best way to connect (ssh) to hundreds of nodes and grep log files parallely from shell. Using for loop seems to be sequential. Are there any shell built in construct which could be used to achieve this? Is the sub shell any good here? (1 Reply)
Need assistance to add code to hundreds of .html
Code will look like below and needs to be added below <html> tag:
<script>
Some .js code here
</script>
This will be used in Fedora release 7 (Moonshine).
I will appreciate any type of help and/or orientation.
Thank you! (4 Replies)
Discussion started by: Ferocci
4 Replies
LEARN ABOUT SUSE
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)