delim might change to hold different values since it comes from the fourth char of another file. Can someone help me with my awk statement to use a the variable "delim"
Hi,
I have a situation where I have to specify a different value to an awk command, I beleive i have the gist of this done, however I am not able to get this correct. Here is what I have so far
echo $id
065859555
This value occurs in a "pipe" delimited file in postition 8. Hence I would... (1 Reply)
Hi All,
I have a awk command that is stored in a variable.
the value of the variable cmd is:
(mean output of echo $cmd is: )
awk -F";" '{print $1}'
Now I want to execute this command.
How can I do that????
Quick Reply will be appreciated.
Regards,
Amit (2 Replies)
Hi Jim,
The following script is in working state. But i m having one more problem with awk cmd. Could you tell me how to use any variable inside awk or how to take any variable value outside awk.
My problem is i want to maintain one property file in which i am declaring variable value into that... (12 Replies)
Okay, so I am trying to use a count variable to reference the column of output sent from an echo statement. So I am trying to do this
#!/bin/bash
CURRENT=$PWD
VAR=3
CHANGE=`echo $CURRENT | awk -F "/" '{ print \$$VAR }'`
This instead of giving me the third instance after the "/" gives... (4 Replies)
Trying to do something like this
ls -lrt | awk '$9=="test5"'
-rw-r--r-- 1 lrmq db2iadm1 381 Sep 20 21:56 test5
But now, I need to give a variable in place of test5. For example let's define x as test5
x=test5
ls -lrt | awk '$9=="$x"'
This doesn't seem to be working. It doesn't take the... (4 Replies)
Hi Gurus,
I need a suggestion, please help. I have a input file as below :
abc.txt :
*
xxxx: 00000
xxxxx: 00000
xxxx: RANDOM
xxx: RANDOM
**************************xxxxxxx***
* abc
******************************
abc:
abc: ... (3 Replies)
Hi Guys,
Can anyone of you please tell me how to use a variable inside a awk command.
For ex - if am printing the third column with respect to a pattern with delimiter ~
awk -F~ '$3=="pattern"' <file name> - This works,
Now here I have a set of patterns in a file and I want to put it in... (1 Reply)
Have a small doubt .
While using an iterator , i need to take the fields as seen as below .
But the Iterator is not been displayed . Can you please help with this .
Code:
ITERATOR=0COUNT=`cat test.txt`echo "$COUNT" while do echo $ITERATOR echo "$COUNT" awk... (3 Replies)
I'm working on a script in which gives certain details in its output depending on user-specified options. So, what I'd like to do is something like:
if
then
awkcmd='some_awk_command'
else
awkcmd='some_other_awk_command'
fi
Then, later in the script, we'd do something like:
... (5 Replies)
Hello All,
I am trying to run a script to extract data from the file. The format of the file is as below:
filename: sample.log
12345| ABCD
23456| GKHY
33454| ABCD
98765| TTRRI want to run a command in AWK as show below
extract.sh
#!/bin/bash
echo... (2 Replies)
Discussion started by: chetanojha
2 Replies
LEARN ABOUT DEBIAN
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)