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Full Discussion: Ls command in a for loop displaying error
Top Forums Shell Programming and Scripting Ls command in a for loop displaying error Post 303028751 by rbatte1 on Monday 14th of January 2019 07:49:01 AM
Old 01-14-2019
Do you risk having spaces, tab or other naughty characters in the directory name or file name? You would be safer to use "${3}/${file}" to ensure that the values are treated as a single item. if you have a for loop on items with spaces, then they will be split up and processed separately. For instance:-
Code:
whole_message="Hello world"
for one_message in ${whole_message}
do
   echo ${one_message}
done
Hello                                          # <---- Output split to one
world.                                         # <---- line for word

whole_message="Hello world"
for one_message in "${whole_message}"          # <--- Wrapped in double quotes
do
   echo ${one_message}
done
Hello world                                    # <---- Output for one value all written as one line.


I hope that this helps,
Robin
This User Gave Thanks to rbatte1 For This Post:
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menu_spacing

menu_spacing(3X)														  menu_spacing(3X)

NAME

       menu_spacing - Control spacing between menu items.

SYNOPSIS

       #include <menu.h>
       int set_menu_spacing(MENU *menu,
			    int spc_description,
			    int spc_rows,
			    int spc_columns);
       int menu_spacing(const MENU *menu,
			int* spc_description,
			int* spc_rows,
			int* spc_columns);

DESCRIPTION

       The  function  set_menu_spacing	sets the spacing informations for the menu.  spc_description controls the number of spaces between an item
       name and an item description. It must not be larger than TABSIZE. The menu system puts in the middle of this spacing area the  pad  charac-
       ter.  The  remaining  parts  are filled with spaces.  spc_rows controls the number of rows that are used for an item. It must not be larger
       than 3. The menu system inserts then blank lines between item rows, these lines will contain the pad character  in  the	appropriate  posi-
       tions.	spc_columns  controls the number of blanks between columns of items. It must not be larger than TABSIZE.  A value of 0 for all the
       spacing values resets them to the default, which is 1 for all of them.
       The function menu_spacing passes back the spacing info for the menu. If a pointer is NULL, this specific info is simply not returned.

RETURN VALUE

       Both routines return E_OK on success. set_menu_spacing may return E_POSTED if the menu is posted, or E_BAD_ARGUMENT if one of  the  spacing
       values is out of range.

SEE ALSO

       curses(3X), menu(3X).

NOTES

       The header file <menu.h> automatically includes the header file <curses.h>.

PORTABILITY

       These routines are specific to ncurses.	They were not supported on Version 7, BSD or System V implementations.	It is recommended that any
       code depending on them be conditioned using NCURSES_VERSION.

AUTHORS

       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.

																  menu_spacing(3X)
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