I need to merge data from more than one file and I am using
while read line_record
do
field1=`echo $line_record | awk -F "," '{ print $1 }'`
echo $line_record >> $outFile
if
then
while read new_linerec
do
echo $new_linerec... (3 Replies)
Hi,
I want to move the output of a command/script to a file as well as to to be displayed on stdout.
Can anybody help me in this. Thanks in advace ..
-Chanakya M (1 Reply)
Hi all, why does one version of this command work but not the other?
- This file already exists with 644 mod permissions
- I am logged in as d269836, no su rights.
- Box is 'SunOS' running bash I think; but runs ksh scripts OK.
This one works:
find /users/d269836 -type f -name "*.txt"... (6 Replies)
Hi,
Below is the whole string which is to be redirected to the new file.
su - oracle -c "exp $user/$pass file=/oracle/oradata/backup/exp_trn_tables_`date +%d_%b_20%y_%H_%M_%S`.dmp log=/oracle/oradata/backup/exp_trn_tables_`date +%d_%b_20%y_%H_%M_%S`.log tables=table1,table2 statistics=none"
... (3 Replies)
Hello,
I am interested in taking the output from a script i wrote and using it as input to a different script i wrote. So for example i want to take the output from program2 and use it as a parameter for program1. I didnt think i could use the >> symbols because i think that is just for .txt... (4 Replies)
I am trying to filter records based on number of "|", delimiter in my application. If number of "|" is greater than 14 its a bad record, else its a good record. I have to redirect output to two different files based on the if-then-else evaluation in AWK.
if number of “|” in file_0 > 14
... (2 Replies)
Hello Forum.
I have the following files in one directory:
abc_july01_2013.txt
abc_july02_2013.txt
abc_july03_2013.txt
abc_july04_2013.txt
abc_july05_2013.txt
abc_july06_2013.txt
abc_july07_2013.txt
abc_july08_2013.txt
If I want to be able to keep the last 5 versions of the file and... (4 Replies)
For example,
if we run the below command,
symcfg list -thin -pool , results in an output most of the times and if the out is generated i'm able to redirect the output to a file. but sometimes it doesnt result any output and even though the output is being redirected, i can see "No Thin Pools "... (2 Replies)
Hi,
Can somebody please let me know if we can redirect variable value to the sftp connection. I am trying to run the attached snippet but facing an error.
dev@UAT.com> export USER1=ftp
dev@UAT> export HOST1=XX.XX.XX.XX
dev@UAT> export INPUTDATA2='lcd /Z02/apps/output/UAT/CMUP/incoming cd... (9 Replies)
Hi,
I have created script which redirect the output to file.I am able to get the output in file but not in the format.
Output :Content of the log which have 10 -15 lines.
Actal :Line1 ..Line 2Line3 Line4 Line 5
Expected:Line1
Line 2
Line3
Please... (7 Replies)
Discussion started by: karthik771
7 Replies
LEARN ABOUT CENTOS
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)