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Top Forums Shell Programming and Scripting Generate 100 Character Fixed Length Empty File Post 302493494 by cfajohnson on Wednesday 2nd of February 2011 11:07:19 PM
Old 02-03-2011

What do you mean by "an empty file"? If it is 100 characters or bytes long, it is not empty.

To fill it with spaces, you don't need any external command:
Code:
printf "%100s" ' ' > "$file"

 

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ERUBIS(1)							   User Commands							 ERUBIS(1)

NAME
erubis - eRuby style template engine for multiple languages SYNOPSIS
erubis [..options..] [file ...] DESCRIPTION
Embedded templating engine for multiple languages. Erubis will take a template file as input and output code to convey that data in the language specified. The following output languages are supported: * Ruby * PHP * C * Java * Scheme * Perl * JavaScript OPTIONS
-h, --help help -v version -x show converted code -X show converted code, only ruby code and no text part -N numbering: add line numbers (for '-x/-X') -U unique: compress empty lines to a line (for '-x/-X') -C compact: remove empty lines (for '-x/-X') -b body only: no preamble nor postamble (for '-x/-X') -z syntax checking -e escape (equal to '--E Escape') -p pattern embedded pattern (default '<% %>') -l lang convert but no execute (ruby/php/c/java/scheme/perl/js) -E e1,e2,... enhancer names (Escape, PercentLine, BiPattern, ...) -I path library include path -K kanji kanji code (euc/sjis/utf8) (default none) -c context context data string (yaml inline style or ruby code) -f datafile context data file ('*.yaml', '*.yml', or '*.rb') -T don't expand tab characters in YAML file -S convert mapping key from string to symbol in YAML file -B invoke 'result(binding)' instead of 'evaluate(context)' --pi=name parse '<?name ... ?>' instead of '<% ... %>' supported properties: * (common) --escapefunc=nil : escape function name --pattern="<% %>" : embed pattern --trim=true : trim spaces around <% ... %> --preamble=nil : preamble (no preamble when false) --postamble=nil : postamble (no postamble when false) --escape=nil : escape expression or not in default * (basic) * (pi) --pi="rb" : PI (Processing Instrunctions) name --embchar="@" : char for embedded expression pattern('@{...}@') * ruby * php * c --indent="" : indent spaces (ex. ' ') --out="stdout" : output file pointer name * java --indent="" : indent spaces (ex. ' ') --buf="_buf" : output buffer name --bufclass="StringBuffer" : output buffer class (ex. 'StringBuilder') * scheme --func="_add" : function name (ex. 'display') * perl --func="print" : function name * javascript --docwrite=true : use 'document.write()' when true EXAMPLES
Run 'erubis -l php example.ephp' to convert the embedded document to php code. example.ephp: <?xml version="1.0"?> <html> <body> <p>Hello <%= $user %>!</p> <table> <tbody> <% $i = 0; %> <% foreach ($list as $item) { %> <% $i++; %> <tr bgcolor="<%= $i % 2 == 0 ? '#FFCCCC' : '#CCCCFF' %>"> <td><%= $i %></td> <td><%== $item %></td> </tr> <% } %> </tbody> </table> </body> </html> SEE ALSO
http://rubyforge.org/projects/erubis/ erubis 2.6.2 January 2009 ERUBIS(1)
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