&& Some Bash Shell Incantations
  
DESCRIPTION 

  This file contains some 'pipe-lines' or 'incantations' that I have come up
  with (along with many other people) in order to do common tasks. I record
  them here because at times I find it a pain to try to remember or to
  re-invent them.  There are a number of other files floating around which also
  have this sort of stuff in it, that I have written.

INCANTATIONS

 
 * This is a line to rename a group of files which all have similar names
 for i in wordlist*; do cp $i $(echo $i | sed "s/wordlist/gencat-phraselist/g"); done
   
 awk '/^[^ ]/ {print toupper($0)} /^ / {print} /^$/' netbeans-tomcat-guide.txt | less
   An incantation to convert to upper-case all lines which do not begin with a space.

   Another way to do this would be with the sed 'y' command. eg

 sed "/^[^ ]/ y/a-z/A-Z/"
   But I am not sure if the y command will accept 'character sets' such as a-z or whether
   you need to specify individually each character.

  cat gencat-phraselist-en-ca.txt | sed -e "s/^[[:space:]]*//g" -e "s/[[:space:]]*$//g" -e "/\-/! h" -e "/\-/{G;s/\-\([^\-]\+\)\-\([^\n]\+\)\n\(.*\)[ ]\{4\}\(.*\)/\3 \1 \4 \2/g;}" | more

  This is a truly amazing pipe-line which uses the powers of sed's 'hold spaces' and 'pattern spaces'
  This line converts partial sentences into full sentences. An examples of the partial
  sentences can be found in 'gencat-phraselist-en-ca.txt'. 

 echo '/^\n*$/{$d;N;};/\n$/ba' | sed "s/;/;|/g" | tr '|' '\n' | sed "s/\([{}]\)/|\1|/g" | tr '|' '\n' | tr -s '\n'
  This is a line that attempts to do what Larry Walls s2p 'sed to perl' converter. 
  That is it attempts to convert a sed script to the syntax of another language
  (which may potentially be more readable). It tries to do this with a command line bash
  script. Its main weakness is that it needs to find a character that is not used
  anywhere in the sed script (in this case we use the '|' bar character)
  
  cat glossary.txt | sed "/^[ ]*\*/{s/^[ ]*\*/BEGIN:/g;x;G;s/^BEGIN:/END:/;}" | more 
   An very nice pipe line that converts a 'title list' into a 'sectioned list' with begin
   and end markers for each section. The titled list might look like
     * item1
       This is the first item.
       Lots of text
     * item 2
       Another item
       more text. I want to
       convert this to a list with begin
       and end markers
     * item3
       more stuff

 cat glossary.txt | sed "/^[ ]*\*/{s/^[ ]*\*\(.*\)/<item value = \"\1\">/g;x;G;s/^<item value = \"[^\n]*/<\/item>/;}" | more
   This is another very interesting pipe-line once again using the power of sed 'hold spaces' in order
   to transform a 'titled list' into a kind of XML. The titled list items in this case start with the 
   '*' character, but any pattern is possible.

  cat glossary.txt | sed "/^[ ]*\*/{x;s/[^\n]*//g;G;s/\(\n\)/--{:split:}--\1/g;}" | less
    A pipe-line to insert a particular tag just before a particular type of line. This
    is probably not the best way to do this.

  cat glossary.txt | csplit - "/^[ ]*\*/" "{*}"
    A line to split a stream based on a pattern 

   for i in xx*; do cp $i $(grep "^[ ]*\*" $i | sed "s/^[ ]*\*/GLOSS-/g" | tr ' */' '-'); done; cat GLOSS-* | more
    A line which renames and outputs a set of files based on a line of text which
    they contain