10-05-2011
Is it just me or has the world become too lazy? I'm sure with 115 posts to your name you must have come across the famous for loop, available in a language of your choosing.
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1. UNIX for Dummies Questions & Answers
Hi Unix gurus,
I have a file. I need to insert sequential number at the starting of the file. Fields are delimited by "|". I know the starting number.
Example:
File is as follows
|123|4test|test
|121|2test|test
|x12|1test|test
|vd123|5test|test
starting number is : 120
... (7 Replies)
Discussion started by: jingi1234
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2. Programming
We have to convert a sequential file to a 80 char line sequential file (HP UX platform).The sequential file contains special characters. which after conversion of the file to line sequential are getting coverted into "new line" or "tab" and file is getting distorted. Is there any way to read these... (2 Replies)
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3. Shell Programming and Scripting
Hi
I have a file sequential way i.e. written in contineous mode and the Record Seperator is AM from which the record is seperated .Now to process I have to make line sequential,and more over record length is not same it varies as per the input address,
AM1234563 John Murray 24 Old streeet old... (5 Replies)
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4. Shell Programming and Scripting
Hi there,
Firstly, I have no experience with shell scripts so would really appreciate some help.
I have the following shell script that is causing some problems:
moveit()
{
&& set -x
if
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5. Programming
Writing a Tool to simulate non-sequential disk I/O (simulate db file sequential read) in C POSIX
I have over the years come across the same issue a couple of times, and it normally is that the read speed on SAN is absolutely atrocious when doing non-sequential I/O to the disks. Problem being of... (7 Replies)
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6. Shell Programming and Scripting
I can rename a file with sequential numbers from 1 to N with this script:
num=1
for file in *.dat;do
mv "$file" "$(printf "%u" $num).txt"
let num=num+1
done
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7. Shell Programming and Scripting
Hi have a file of the following format
a1
a1
a2
a2
a4
a4
a4
a3
a3
a5
a6
a6
a6
a6
..
100's of lines (2 Replies)
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8. UNIX for Dummies Questions & Answers
Hi experts, I've been struggling to format a large genetic dataset. It's complicated to explain so I'll simply post example input/output
$cat input.txt
ID GENE pos start end
blah1 coolgene 1 3 5
blah2 coolgene 1 4 6
blah3 coolgene 1 4 ... (4 Replies)
Discussion started by: torchij
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9. UNIX for Dummies Questions & Answers
I have a file that looks like this:
n1 1
n2 1
n3 1
n4 3
n4 3
n2 5
n2 5
n2 5
n2 5
n3 5
n3 5
n4 6
n7 6
that is a name followed be a descriptive number.
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10. Shell Programming and Scripting
I am trying to output a tab-delimited result that uses the data from a tab-delimited file to combine and subtract specific lines.
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LEARN ABOUT ULTRIX
spline
spline(1g) spline(1g)
Name
spline - interpolate smooth curve
Syntax
spline [option...]
Description
The command takes pairs of numbers from the standard input as abcissas and ordinates of a function. It produces a similar set, which is
approximately equally spaced and includes the input set, on the standard output. The cubic spline output has two continuous derivatives,
and a sufficient number of points to look smooth when plotted.
Options
The following options are recognized, each as a separate argument.
-a Supplies abcissa automatically and uses specified number (next argument) for spacing. Default is 1.
-k Sets the boundary constant to the specified value (next argument). By default k = 0. For example,
(2nd deriv. at end) = k*(2nd deriv. next to end)
-n Uses specified number (n) in calculating intervals between lower and upper limits. (Default n = 100.)
-p Periodically produces output (matches derivates at ends). First and last input values should normally agree.
-x Uses specified numbers (next arguments) as lower and upper limits. Normally these limits are calculated from the data. Automatic
abcissas start at lower limit (default 0).
Restrictions
A limit of 1000 input points is enforced silently.
Diagnostics
When data is not strictly monotone in x, reproduces the input without interpolating extra points.
See Also
graph(1g), plot(1g)
spline(1g)