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Top Forums UNIX for Dummies Questions & Answers Deleting all but a regex using sed, tr, cut etc Post 302550878 by xbin on Sunday 28th of August 2011 10:19:21 AM
Old 08-28-2011
Code:
[ZSH-4.3.11] tmp % cat testlist
b011rf7y: Doctor Who: Series 6 - 7. A Good Man Goes to War
b0146h0q: Doctor Who: Series 6 - 8. Let's Kill Hitler
Doctor_Who_Confidential_Series_5_-_8._After_Effects_b00sj9qj_default.flv
Doctor_Who_Series_5_-_8._The_Hungry_Earth_b00sj9sq_default.flv
Doctor_Who_Series_6_-_1._The_Impossible_Astronaut_b010tb7q_default.flv


[ZSH-4.3.11] tmp % cut -d : -f 1 -s  testlist 
b011rf7y
b0146h0q


[ZSH-4.3.11] tmp % cut -d : -f 2-3  testlist  
 Doctor Who: Series 6 - 7. A Good Man Goes to War
 Doctor Who: Series 6 - 8. Let's Kill Hitler
Doctor_Who_Confidential_Series_5_-_8._After_Effects_b00sj9qj_default.flv
Doctor_Who_Series_5_-_8._The_Hungry_Earth_b00sj9sq_default.flv
Doctor_Who_Series_6_-_1._The_Impossible_Astronaut_b010tb7q_default.flv

#OR

[ZSH-4.3.11] tmp % cut -d : -f 2-3  testlist | sed 's/^ //g; s/://g; s/ /_/g'
Doctor_Who_Series_6_-_7._A_Good_Man_Goes_to_War
Doctor_Who_Series_6_-_8._Let's_Kill_Hitler
Doctor_Who_Confidential_Series_5_-_8._After_Effects_b00sj9qj_default.flv
Doctor_Who_Series_5_-_8._The_Hungry_Earth_b00sj9sq_default.flv
Doctor_Who_Series_6_-_1._The_Impossible_Astronaut_b010tb7q_default.flv


Last edited by xbin; 08-28-2011 at 11:40 AM..
 

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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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