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Full Discussion: Bash functions sequence ?
Top Forums Shell Programming and Scripting Bash functions sequence ? Post 303022421 by annacreek on Friday 31st of August 2018 12:14:57 PM
Old 08-31-2018
So the bottom like is - I have to clean -up my own mess. O well...

------ Post updated at 11:14 AM -----




Right church wrong pew -

sorry I do not know how my NEW post got here.




OK, I have not got the full grasp of this "standard " input / output /error process.



I have manged to append (two) variables to a file.

I know how to reverse their order using tac.

I can see the "standard output" in terminal. - output from tac.

I like to "send" each line to $1 and $2 respectively. Actually to an array of $, but I'll tackle that later.



I know how to do "while read" , I like to learn more by using tac directly.



Here is the base I have so far , not much.



Code:
echo "$LINENO  reverse  file entries  FIFO "
tac $PWD$DEBUG_DIR$DEBUG_MENU 
#ouputs lines to terminal FIFO 
echo "$LINENO  reverse  file entries  FIFO "

Last edited by annacreek; 08-31-2018 at 01:20 PM.. Reason: wrong post place
 

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LEARN ABOUT REDHAT

tac

TAC(1)									FSF								    TAC(1)

NAME

       tac - concatenate and print files in reverse

SYNOPSIS

       tac [OPTION]... [FILE]...

DESCRIPTION

       Write each FILE to standard output, last line first.  With no FILE, or when FILE is -, read standard input.

       Mandatory arguments to long options are mandatory for short options too.

       -b, --before
	      attach the separator before instead of after

       -r, --regex
	      interpret the separator as a regular expression

       -s, --separator=STRING
	      use STRING as the separator instead of newline

       --help display this help and exit

       --version
	      output version information and exit

AUTHOR

       Written by Jay Lepreau and David MacKenzie.

REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT

       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO

       The full documentation for tac is maintained as a Texinfo manual.  If the info and tac programs are properly installed at  your	site,  the
       command

	      info tac

       should give you access to the complete manual.

tac (coreutils) 4.5.3						   February 2003							    TAC(1)
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