03-26-2014
It worked after all. Thanks for your help Don Cragun
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dear All,
Good day. Here i am facing some problem like below.
file contains
12345 0001 090112
14385 0001 090112
13255 0001 090112
11345 0001 090112
....
I want to sort ascending according to the first column. What will be the shell script. (4 Replies)
Discussion started by: saifurshaon
4 Replies
2. Shell Programming and Scripting
Hi,
This is my input file:
ali 5 usa abc
abu 4 uk bca
alan 6 brazil bac
pinky 10 utah sdc
My desired output:
pinky 10 utah sdc
alan 6 brazil bac
ali 5 usa abc
abu 4 uk bca
Based on the column two, I want to do the descending order and print out other related column at the... (3 Replies)
Discussion started by: patrick87
3 Replies
3. Shell Programming and Scripting
I have an input file like this...
AAAlkalines Energizer
AAAlkalines Energizer
AAAlkalines Energizer
AAAlkalines Sunlight
AAAlkalines Sunlight
AAAlkalines Sunlight
AAAlkalines Energizer
AAAlkalines Energizer
AAAlkalines Energizer
AAASalines ... (7 Replies)
Discussion started by: malcomex999
7 Replies
4. UNIX for Dummies Questions & Answers
Hello,
I am running on AIX.I have a question about sorting in UNIX.
if my file is something like this:
a c
b d
a b
b c
a a
I want to sort on column 1 only. The following statement does not seem to work, it still considers the rest of the line in the sorting results: sort... (2 Replies)
Discussion started by: gio001
2 Replies
5. Shell Programming and Scripting
hI
I have file A
NSU30504 5 6 G 6
NSU3050B T 7 9 J
NSU30506 T I 8 9
NSU3050C H J K L Output:
NSU3050B T 7 9 J
NSU3050C H J K L
NSU30504 5 6 G 6
NSU30506 T I 8 9Video tutorial on how to use code tags in The UNIX and Linux Forums. (13 Replies)
Discussion started by: pareshkp
13 Replies
6. UNIX for Dummies Questions & Answers
If my data is numerical :
1 = 101
2 = 102
3 = 104
4 = 104
7 = 103
8 = 103
9 = 105
I need the result like below:
1 = 101
2 = 102
3 = 103
4 = 103
7 = 104
8 = 104
9 = 105 (4 Replies)
Discussion started by: GeodusT
4 Replies
7. Shell Programming and Scripting
Hello All,
I have one script for example a1.sh. I want to execute the same a1.sh script inside a1.sh script at the end with different parameter such that the second one will run independently. I don't want the second one to take any input from 1st a1.sh. I tried few things like background/exec... (7 Replies)
Discussion started by: Vikram_Tanwar12
7 Replies
8. Shell Programming and Scripting
How to sort based on the 4 the column . The input data has a header and output needs to be sorted based on the 4th column rbcid.
I tried below code but not getting results
sort -u -t'|' -k4,4r file1 > file2
time|tourit|nofdays|rbcid|blank|type|value|nill|valuedesc|name... (6 Replies)
Discussion started by: samrat dutta
6 Replies
9. UNIX for Dummies Questions & Answers
Hello all,
How do I achieve this? I have A, B and A/B in different variables in a file in col2.
I want them to sort in such a way, that the variables appear together, and within a variable, the data is sorted in the order A,B and then A/B. If I sort on the second column, the order becomes A,... (6 Replies)
Discussion started by: senhia83
6 Replies
10. Shell Programming and Scripting
How to sort the following output based on lowest to highest BE?
The following sort does not work.
$ sort -t. -k1,1n -k2,2n bfd.txt
BE31.116 0s 0s DOWN DAMP
BE31.116 0s 0s DOWN DAMP
BE31.117 0s 0s ... (7 Replies)
Discussion started by: sand1234
7 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)