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Full Discussion: Need help comparing two files and deleting some things in those files!
Top Forums Shell Programming and Scripting Need help comparing two files and deleting some things in those files! Post 302438905 by linuxkid on Wednesday 21st of July 2010 08:57:59 AM
Old 07-21-2010
Quote:
Originally Posted by citaylor
Will the versions always be a normal floating point value ?
For example 1.1, 1.2, etc ?
Or could you have 1.1.1, 1.1.2 ?
If it is the former we could use a numerical loop, otherwise you will have to use multiple nested loops to loop through from the minimum to the maximum version number.
Nope always normal floating point like 1.1, 1.2 , and so on and can also be as 1.11 1.12 etc etc. CCould you show me how to do this please?

---------- Post updated at 01:57 PM ---------- Previous update was at 11:26 AM ----------
Quote:
Originally Posted by rdcwayx
Seems the for loop in awk has bug? for first awk, i expect to get 4 output: 1.5, 1.4, 1.3, 1.2, but there are only 3.

Code:
$ awk 'BEGIN {for (i=1.5;i>=1.2;i-=0.1) print i}'
1.5
1.4
1.3
 
$ awk 'BEGIN {for (i=15;i>=12;i-=1) print i}'
15
14
13
12

For below code, last one is missed.
Code:
$ awk 'NR==FNR {for (i=2;i<=NF;i+=2) a[$1 FS $i]=$(i+1) ;next}
     {printf $1 FS} {for (i=$3;i>=$2;i-=0.1) printf i FS a[$1 FS i] FS}{printf "\n"}' File2 File1
 
pictures.txt 1.3 ref5432 1.2 ref4244
dance.txt 1.4 ref0695 1.3 ref5738
treehouse.txt 1.5 ref3284 1.4 ref5838

Can anyone help to check?
Could we not take advantage of the bug and do:

Code:
for (i=$3;i>=$2-0.1;i-=0.1)

Last edited by linuxkid; 07-21-2010 at 10:18 AM..
 

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LEARN ABOUT OPENDARWIN

set_color

set_color(1)							       fish							      set_color(1)

NAME

       set_color - set_color - set the terminal color

set_color - set the terminal color
   Synopsis
       set_color [-v --version] [-h --help] [-b --background COLOR] [COLOR]

   Description
       Change the foreground and/or background color of the terminal. COLOR is one of black, red, green, brown, yellow, blue, magenta, purple,
       cyan, white and normal.

       o -b, --background Set the background color

       o -c, --print-colors Prints a list of all valid color names

       o -h, --help Display help message and exit

       o -o, --bold Set bold or extra bright mode

       o -u, --underline Set underlined mode

       o -v, --version Display version and exit

       Calling set_color normal will set the terminal color to whatever is the default color of the terminal.

       Some terminals use the --bold escape sequence to switch to a brighter color set. On such terminals, set_color white will result in a grey
       font color, while set_color --bold white will result in a white font color.

       Not all terminal emulators support all these features. This is not a bug in set_color but a missing feature in the terminal emulator.

       set_color uses the terminfo database to look up how to change terminal colors on whatever terminal is in use. Some systems have old and
       incomplete terminfo databases, and may lack color information for terminals that support it. Download and install the latest version of
       ncurses and recompile fish against it in order to fix this issue.

Version 1.23.1							  Sun Jan 8 2012						      set_color(1)
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