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Top Forums Shell Programming and Scripting ITERATION: remove row based on string value Post 302450213 by Franklin52 on Thursday 2nd of September 2010 02:45:21 AM
Old 09-02-2010
Quote:
Originally Posted by asanjuan
To tackle the problem in each step, first I need to remove matching lines by string and value.

In GNU/Linux x86_64:
Code:
awk  '($4 ~ /^AT$/){print}' newfile

The code above says that 4th column with matching string AT, will print into newfile. BUT, I need to tell the script that ONLY if the 9th column has value in between 0.00-0.10 ? How to do that in bash shell ?

Code:
> cat file
OM   3328   O     BT   268       5.800      7.500      4.700      0.000      1.400
OM   3329   O     BT   723       8.500      8.900      3.600      8.500      1.400
OM   3330   O     AT   231       6.700      5.500      7.600      0.000      1.400
OM   3331   O     AT   234       1.200      7.700      5.500      8.500      1.400
OM   3332   O     AT   256       3.800      5.800      5.200      0.100      1.400

Code:
> cat newfile
 OM   3330   O     AT   231       6.700      5.500      7.600      0.000      1.400
 OM   3332   O     AT   256       3.800      5.800      5.200      0.100      1.400

Please help.

-A
Try this:
Code:
awk '$4=="AT" && $9 <= 0.1 && $9 >= 0.0' file

This User Gave Thanks to Franklin52 For This Post:
 

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machid(1)						      General Commands Manual							 machid(1)

NAME
machid: hp9000s200, hp9000s300, hp9000s400, hp9000s500, hp9000s700, hp9000s800, hp-mc680x0, hp-pa, pdp11, u370, u3b, u3b10, u3b2, u3b5, vax - provide truth value about processor type SYNOPSIS
DESCRIPTION
The following commands return a true value (exit code 0) if the a processor type matches the command name. Otherwise a false value (exit code nonzero) is returned. These commands are commonly used within makefiles and shell procedures to improve portability of applications (see make(1)). +-----------+-------------------------++--------+--------------------------+ |Command | True for ||Command | True for | +-----------+-------------------------++--------+--------------------------+ |hp9000s200 | Series 200 ||pdp11 | PDP-11/45 or PDP-11/70 | |hp9000s300 | Series 300 ||u3b | 3B20 computer | |hp9000s400 | Series 400 ||u3b2 | 3B2 computer | |hp9000s500 | Series 500 ||u3b5 | 3B5 computer | |hp9000s700 | Series 700 ||u3b10 | 3B10 computer | |hp9000s800 | Series 800 or 700 ||u370 | IBM System/370 computer | |hp-mc680x0 | Series 200, 300, or 400 ||vax | VAX-11/750 or VAX-11/780 | |hp-pa | Series 700 or 800 || | | +-----------+-------------------------++--------+--------------------------+ EXAMPLES
Given a shell script that must behave differently when run on an HP 9000 Series 700 or 800 system, select the correct code segment to be executed: WARNINGS
always returns true on both Series 800 and Series 700 systems. Therefore, when using this command in scripts to determine hardware type, always use both and in the appropriate sequence to ensure correct results (see machid(1) will no longer provide support for future machines beyond the Series 800 and Series 700 systems. Decisions should be based on the hardware and software configuration information returned by getconf(1). SEE ALSO
getconf(1), make(1), sh(1), test(1), true(1). machid(1)
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