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Full Discussion: Characters in a single read
Top Forums UNIX for Dummies Questions & Answers Characters in a single read Post 302847093 by cero on Monday 26th of August 2013 09:11:24 AM
Old 08-26-2013
A ASCII character is represented by a single byte. A unicode character is represented by more than one byte. It all depends what you need this information for. Is it possible that you will have international characters in your file?
Maybe an example using the unicode character ä makes it more clear to you:
Code:
$ echo "äbc" |wc -c
5
$ echo "äbc" |wc -m
4


Last edited by cero; 08-26-2013 at 10:26 AM..
 

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GETUNIMAP(8)							       Linux							      GETUNIMAP(8)

NAME
getunimap - dump the unicode map for the current console to stdout SYNOPSIS
getunimap [ -s ] [ -C console ] DESCRIPTION
The getunimap program is old and obsolete. It is now part of setfont (1). The getunimap program outputs the unicode map (also called a "Screen Font Map") for the current console to standard output. The -C option may be used with Linux 2.6.1 and later to get the map for a console different from the current one. Its argument is a path- name. The output of getunimap is of the form 0xAA U+1234 # comment where 0xAA is the font character code and U+1234 is a unicode character, that if displayed, will be displayed using glyph 0xAA in the font. Many unicode characters may be mapped to the same glyph. the Hash symbol # is used as a comment delimiter; characters after a hash sign (to the end of the line) are comments. The -s option will sort and merge elements, sorting on font character. Hence, it will produce output of the form: 0x22 U+1234 U+5678 U+3456 0x23 U+0023 etc., listing the multiple unicode characters that map to a font glyph. The output of getunimap is of the form accepted by setfont and psfaddtable SEE ALSO
psfaddtable(1), setfont(1). Console Tools 2004-01-01 GETUNIMAP(8)
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