Hi
I am writing a script file which sends the log files along with their size in a folder named log to a file called temp.log using the following cmd:
ls -st 190_GSTV_HUX_003QISCGSK026** >> /home/user/temp.log
the temp.log looks like this:
16 190_GSTV_HUX_003QISCGSK026_message070321.log
... (11 Replies)
Hi all,
I have one clarification i am using the loop which will process for each record .suppose there is f ailure in the first record it need to send mail and process the next .my code:
defcount=`cat <filename>|wc -l`
while ]
do
if <some condiotion>
then
echo "mail"
fi
done
so... (1 Reply)
I have a for loop in my script as shown below.
for file_path in $file_list ; do
........my code
..........
......
done
Can i restrict the number of files parsing to the variable file_path as 50?
That is, even if I have some 100 files in file_list, I need to take only 50 files for... (7 Replies)
I have a logic like this
It initializes the flag variable as "T" at the beginning of the loop everytime
Inside each loop it checks for two conditions and updates the flag variable as "A" or "B"
In the end of the loop it checks for the value of the variable flag for "A" or "B" and execute... (4 Replies)
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Hi,
I have variables like
var1
var2
var3
var4
in
if loop i am trying to check the condition
if(variable == "var") then
echo $variable
endif (0 Replies)
Hello
I want to compare values of two variables as CHECK condition in a while loop.
eg:
var1=0
var2=10
while
do
echo " $var1 "
var1=`expr $var1 + 1`
done
However this is giving error.How to do it in a proper manner?
Thanks. (3 Replies)
Hello experts,
I'm stuck with this script for three days now. Here's what i need.
I need to split a large delimited (,) file into 2 files based on the value present in the last field.
Samp: Something.csv
bca,adc,asdf,123,12C
bca,adc,asdf,123,13C
def,adc,asdf,123,12A
I need this split... (6 Replies)
Hi ,
Please excuse me for opening a new thread i am unable to find out the syntax error
in my if else condition inside for loop in awk command ,
my actual aim is to print formatted html td tag when if condition (True) having string as "failed",
could anyone please advise what is the right... (2 Replies)
Hi,
I Have to check two condition in while loop every 2 minutes. while loop is accompanied with number of times it will check.Please help in putting the two condition in while loop as appropriate.
z= input value,
A=1
while
do
1.check the file output,if the file output is N then keep on... (2 Replies)
Discussion started by: netdbaind
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)