Insert decimal point for numbers

Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Insert decimal point for numbers
# 1  
Old 02-05-2010
Insert decimal point for numbers


In Unix, I have a file with some numbers like :


I want to insert a decimal point for these numbers based on user input.
If the input is 2, the numbers should be changed to


If the input is 3, the numbers should be changed to


Can this be doen with any Unix commands or sed ?
Any help appreciated.
# 2  
Old 02-05-2010
$ cat file1

$ awk '{printf( "%." C "f\n", $1 / 10^C) }' C=1 file1

$ awk '{printf( "%." C "f\n", $1 / 10^C) }' C=2 file1

$ awk '{printf( "%." C "f\n", $1 / 10^C) }' C=3 file1

$ awk '{printf( "%." C "f\n", $1 / 10^C) }' C=4 file1

# 3  
Old 02-05-2010
Hi Scottn,

Works perfectly ! Thanks alot !
Could you take the trouble to explain the core part :

"%." C "f\n", $1 / 10^C

Thanks again Smilie

---------- Post updated at 06:08 AM ---------- Previous update was at 06:01 AM ----------

Ok. I understood it. Really good one !!
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Convert a numeric to 2 decimal point value

Hi , I have a file which contains text like A|Mau|Code|12|Detail B|Mau|Code|20|Header I want to write a command using awk which will output A|Mau|Code|12.00|Detail B|Mau|Code|20.00|Header I used a command like awk -F"|" {printf "%s|%s|%s|%.2f|%s",$1,$2,$3,$4,$5}' which does the... (4 Replies)
Discussion started by: LoneRanger
4 Replies

2. UNIX for Beginners Questions & Answers

How to add following decimal point to a CSV value?

hi there I being trying to figure out way to add " .0" to an integer value in a csv using sed or awk with out success. just as a work around for 2147483647 32 bit limitation that influxdb is currently having the data base will accept values and work fine if it has the XXX.0 ... (7 Replies)
Discussion started by: sash99
7 Replies

3. UNIX for Beginners Questions & Answers

Decimal numbers and letters in the same collums: round numbers

Hi! I found and then adapt the code for my pipeline... awk -F"," -vOFS="," '{printf "%0.2f %0.f\n",$2,$4}' xxx > yyy I add -F"," -vOFS="," (for input and output as csv file) and I change the columns and the number of decimal... It works but I have also some problems... here my columns ... (7 Replies)
Discussion started by: echo manolis
7 Replies

4. Shell Programming and Scripting

Moving decimal point in a series of numbers

Hi, i need to move the decimal point from a file listing some numbers like this : 49899.50 49914.55 49894.48 49939.65 49879.44 49919.57 49934.62 49944.67 49954.72 (1 Reply)
Discussion started by: Board27
1 Replies

5. Shell Programming and Scripting

Help with Round Up with 2 decimal point at specific column

Input file: USA 20.5683 UK 3.54221 Japan 2.54001 China 2.50897 Germany 2.05816 . . Desired output file: USA 20.57 UK 3.54 Japan 2.54 China 2.51 Germany 2.06 . . (2 Replies)
Discussion started by: perl_beginner
2 Replies

6. Shell Programming and Scripting

awk decimal point numbers matching

Hi All, Can some one help me in identifying the significance of character "$" ,Which is playing critical role in matching decimal point numbers as below. $ echo "01#.01"|awk '{if ($0 ~ /^+(\.*)?$/) print}' $ echo "01#.01"|awk '{if ($0 ~ /^+(\.*)?/) print}' 01#.01 $ Regards, Rmkganesh. (3 Replies)
Discussion started by: rmkganesh
3 Replies

7. Shell Programming and Scripting

remove directories with two digits after decimal point

Hi everyone, I am new here and generally not experienced with linux. My question must be easy, but as for now I have no idea how to do it. I have lots of directories with numerical names, e.g. 50 50.1 50.12 etc. What I want is to leave directories with no or single digit after the decimal... (2 Replies)
Discussion started by: cabaciucia
2 Replies

8. Shell Programming and Scripting

Comparing two numbers with decimal point

How to compare two numbers with decimal points ? Is there a way in bash to do this? (33 Replies)
Discussion started by: kinny
33 Replies

9. Shell Programming and Scripting

Insert a decimal point

Hi all. Using /bin/sh on an HPUX system. I want to place a decimal in the field 2 charactors from the right (yes, converting to currency). The field lengths are variable. Here's what I'm doing: exec < filename while read FIELD1 FIELD2 do FIELD1="echo $FIELD1 | sed 'syntax that will... (4 Replies)
Discussion started by: lyoncc
4 Replies

10. Shell Programming and Scripting

how to get rid of decimal point?

Hi, I have input with decimal point ( 9.99 ) for hours variable hrs. I need to change it to seconds. Here is my code: secs=`/usr/ucb/echo $hrs*3600 |bc` But I don't want to see the decimal point. I can use awk to trim it if there is one. I am just wondering if there is better standard... (2 Replies)
Discussion started by: cin2000
2 Replies
Login or Register to Ask a Question

Featured Tech Videos