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Full Discussion: Replace line and field using SED and/or AWK or some other suggestion
Top Forums Shell Programming and Scripting Replace line and field using SED and/or AWK or some other suggestion Post 302600325 by thibodc on Monday 20th of February 2012 09:04:56 PM
Old 02-20-2012
Replace line and field using SED and/or AWK or some other suggestion
QUESTION 1:
How do you replace a specific line (i.e. line 4) with a new user defined line (i.e. the contents of SAMS’s name, history, math and English grades have been set already). I have been attempting to use SED (FYI: I don’t have GNU SED) or AWK, but haven’t had any luck. FYI: I am using SOLARIS 10 as an OS. See example below. FYI: KEEP IN MIND FOR ALL EXAMPLES I WAS UNABLE TO PROPERLY ALIGN NAME, HISTORY, MATH AND ENGLISH WITH THERE CORRESPONDING VALUES USING THIS THREAD WORD PROCESSOR .
Below is the starting file.

NAME: HISTORY: MATH: ENGLISH:
ROB A B A
DAN A C B
JOHN C B A

For example if John has left the class and SAM has joined and his grades are all A's.
Resulting file (BOLD TEXT IS WHAT NEEDS TO CHANGE):

NAME: HISTORY: MATH: ENGLISH:
ROB A B A
DAN A C B
SAM A A A





Question 2:
Does anyone know how to replace a specific field (i.e. line 2, field 2)? I would like to do the replacement this generically (line 2, field 2). So, for example I don’t want to use grep on ROB. Again, I do not have GNU SED. See example below.
Below is the starting file.

NAME: HISTORY: MATH: ENGLISH:
ROB A A A
DAN A A A
JOHN A A A

Resulting file (BOLD TEXT IS WHAT NEEDS TO CHANGE):

NAME: HISTORY: MATH: ENGLISH:
ROB A B A
DAN A A A
JOHN A A A
Last edited by methyl; 02-20-2012 at 11:49 PM.. Reason: Clearly homework and should have been posted in the homework forum
 

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LEARN ABOUT DEBIAN

mdbfontencoding

mdbFontEncoding(5)						 The m17n Library						mdbFontEncoding(5)

NAME

       mdbFontEncoding - Font Encoding

DESCRIPTION

       The m17n library loads information about the encoding of each font form the m17n database by the tags <font, encoding>. The data is loaded
       as a plist of this format.

       FONT-ENCODING ::= PER-FONT *

       PER-FONT ::= '(' FONT-SPEC ENCODING [ REPERTORY ] ')'

       FONT-SPEC ::=
	   '(' [ FOUNDRY FAMILY
	      [ WEIGHT [ STYLE [ STRETCH [ ADSTYLE ]]]]]
	    REGISTRY ')'

       ENCODING ::= SYMBOL

       FONT-SPEC is to specify properties of a font. FOUNDRY to REGISTRY are symbols corresponding to Mfoundry to Mregistry property of a font.
       See m17nFont for the meaning of each property.

       For instance, this FONT-SPEC:

	   (nil alice0 lao iso8859-1)

       should be applied to all fonts whose family name is 'alice0 lao', and registry is 'iso8859-1'.

       ENCODING is a symbol representing a charset. A font matching FONT-SPEC supports all characters of the charset, and a character code is
       mapped to the corresponding glyph code of the font by this charset.

       REPERTORY is a symbol representing a charset or 'nil'. Omitting it is the same as specifying ENCODING as REPERTORY. If it is not 'nil', the
       charset specifies the repertory of the font, i.e, which character it supports. Otherwise, whether a specific character is supported by the
       font or not is asked to each font driver.

       For so called Unicode fonts (registry is 'iso10646-1'), it is recommended to specify 'nil' as REPERTORY because such fonts usually supports
       only a subset of Unicode characters.

COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
       <http://www.gnu.org/licenses/fdl.html>.

Version 1.6.2							    12 Jan 2011 						mdbFontEncoding(5)
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