01-30-2007
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi, I have used the following code to sort two sets of data:
awk '{printf "%10s %s\n",$1,$2}'
The first column is text and the second involves numbers. I was just wondering how i would go about sorting the second number so that they ascend from the top?
Thanks for any help (4 Replies)
Discussion started by: Jaken
4 Replies
2. Shell Programming and Scripting
Hi,
I have a file which is:-
1 6 4 8 2 3
2 1 9 3 2 1
3 3 5 6 3 1
4 9 7 8 2 3
I would like to sort from field $2 to field $6 for each of the line to:-
1 2 3 4 6 8
2 1 1 2 3 9
3 1 3 3 5 6
4 2 3 7 8 9
I came across this Arrays on example 26-6. But it is much complicated. I am... (7 Replies)
Discussion started by: ahjiefreak
7 Replies
3. Shell Programming and Scripting
Little-bit of awk experience, need some of the expert help on here. Browsed around here, got a little further, but I am still missing some pieces. Can you help me fill-in my missing awk cells?
Sample data file (leaving out ","'s):
Column 1 Column 2 Column 3 Column 4 ... (10 Replies)
Discussion started by: boolean2222
10 Replies
4. Shell Programming and Scripting
I need to sort this input using sed, awk or any other tool to give below output
Input:
RXOCF-8
CLASS 2A
57
RU
40
RXORX-8-0
CLASS 1B
23 45 16
RXORX-8-1
EXTERNAL CLASS 2A (12 Replies)
Discussion started by: aydj
12 Replies
5. Shell Programming and Scripting
I have an array with five columns and i want to write it to a file.
Before writing it i must sort it using the field in the fifth column.
_________________________________________
|field 1|field 2|field 3|field 4|field 5|
| | | | | |
| | | |... (6 Replies)
Discussion started by: beatblaster666
6 Replies
6. Shell Programming and Scripting
hi everyone, I am kind of new to this forum. I need help in sorting this data out accordingly, I am actually doing a traceroute application and wants my AS path displayed in front of my address like this;
192.168.1.1 AS28513 AS65534 AS5089 AS5089 .... till the last AS number and if possible sort... (8 Replies)
Discussion started by: sam127
8 Replies
7. Shell Programming and Scripting
Hello all, I am new here and *relatively* new to Unix. I have a bit of an emergency. I have a three column file that I need to sort:
sample name, miRNA, reads per million (RPM)
There are multiple samples, and for each sample name there are multiple miRNAs and associated RPMs. Some of these... (6 Replies)
Discussion started by: dunnybocter
6 Replies
8. Shell Programming and Scripting
Hello,
I have a file which has the following format: I have to do is sort individual records in the file based on the 4th field. Each record starts with "Module". Is there an easy way to do this using awk. I have tried piping output from awk to sort and also using "sort" inside awk but... (8 Replies)
Discussion started by: fifteate
8 Replies
9. Shell Programming and Scripting
I need help to sort the output of an awk array
Example datadata="1 blue
2 green
3 blue
4 yellow
5 blue
6 red
7 yellow
8 red
9 yellow
10 yellow
11 green
12 orange
13 black"
My awk line to get output in one lineecho "$data" | awk ' {arr++; next} END { for (i in arr) { if(arr>1 )... (2 Replies)
Discussion started by: Jotne
2 Replies
10. Shell Programming and Scripting
Hello,
I have a file as follows:
BTA Pos KLD
4 79.7011 5.7711028907
4 79.6231 5.7083918219
5 20.9112 4.5559494707
5 58.0002 3.4423546273
6 38.2569 4.7108176788
6 18.3889 7.3631759258 (1 Reply)
Discussion started by: Homa
1 Replies
PIPE(2) System Calls Manual PIPE(2)
NAME
pipe - create an interprocess channel
SYNOPSIS
pipe(fildes)
int fildes[2];
DESCRIPTION
The pipe system call creates an I/O mechanism called a pipe. The file descriptors returned can be used in read and write operations. When
the pipe is written using the descriptor fildes[1] up to 4096 bytes of data are buffered before the writing process is suspended. A read
using the descriptor fildes[0] will pick up the data. Writes with a count of 4096 bytes or less are atomic; no other process can inter-
sperse data.
It is assumed that after the pipe has been set up, two (or more) cooperating processes (created by subsequent fork calls) will pass data
through the pipe with read and write calls.
The Shell has a syntax to set up a linear array of processes connected by pipes.
Read calls on an empty pipe (no buffered data) with only one end (all write file descriptors closed) returns an end-of-file.
SEE ALSO
sh(1), read(2), write(2), fork(2)
DIAGNOSTICS
The function value zero is returned if the pipe was created; -1 if too many files are already open. A signal is generated if a write on a
pipe with only one end is attempted.
BUGS
Should more than 4096 bytes be necessary in any pipe among a loop of processes, deadlock will occur.
ASSEMBLER
(pipe = 42.)
sys pipe
(read file descriptor in r0)
(write file descriptor in r1)
PIPE(2)