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Full Discussion: Why is ./ sometimes needed?
Top Forums Shell Programming and Scripting Why is ./ sometimes needed? Post 303029617 by Xubuntu56 on Tuesday 29th of January 2019 02:52:48 PM
Old 01-29-2019
To all: thanks for your input!


Today I learned: $PATH is not the same for myself and root.


@Don--I typed Cleanup in the post but I wasn't doing so in the script.
Here is the output of those commands:
Code:
  ~$ od -bc ~/bin/cleanup2 | head -n 10
 0000000 043 041 057 142 151 156 057 142 141 163 150 012 012 012 043 040
           #   !   /   b   i   n   /   b   a   s   h  \n  \n  \n   #    
 0000020 120 162 157 160 145 162 040 150 145 141 144 145 162 040 146 157
           P   r   o   p   e   r       h   e   a   d   e   r       f   o
 0000040 162 040 141 040 102 141 163 150 040 163 143 162 151 160 164 012
           r       a       B   a   s   h       s   c   r   i   p   t  \n
 0000060 043 040 143 154 145 141 156 165 160 062 072 040 151 155 160 162
           #       c   l   e   a   n   u   p   2   :       i   m   p   r
 0000100 157 166 145 144 012 043 040 122 165 156 040 141 163 040 162 157
           o   v   e   d  \n   #       R   u   n       a   s       r   o
------------------------------------------------------------------------
           ~$ od -bc ~/bin/cleanup3 | head -n 10
  0000000 043 041 057 142 151 156 057 142 141 163 150 012 012 012 043 040
           #   !   /   b   i   n   /   b   a   s   h  \n  \n  \n   #    
 0000020 143 154 145 141 156 165 160 063 012 043 040 040 127 141 162 156
           c   l   e   a   n   u   p   3  \n   #           W   a   r   n
 0000040 151 156 147 072 012 043 040 040 055 055 055 055 055 055 055 012
           i   n   g   :  \n   #           -   -   -   -   -   -   -  \n
 0000060 043 040 040 124 150 151 163 040 163 143 162 151 160 164 040 165
           #           T   h   i   s       s   c   r   i   p   t       u
 0000100 163 145 163 040 161 165 151 164 145 040 141 040 156 165 155 142
           s   e   s       q   u   i   t   e       a       n   u   m   b

--- Post updated at 07:52 PM ---

@ RudiC and @bakunin


Thanks to your guidance, I strongly suspect the problem is not having my home directory is root's $PATH.

Cleanup3 was only running because I had placed a copy of it in /usr/local/bin.


Now I just need to figure out how to write bakunin's script!
 

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ISPRINT(3)						   BSD Library Functions Manual 						ISPRINT(3)

NAME
isprint -- printing character test (space character inclusive) LIBRARY
Standard C Library (libc, -lc) SYNOPSIS
#include <ctype.h> int isprint(int c); DESCRIPTION
The isprint() function tests for any printing character, including space (' '). The value of the argument must be representable as an unsigned char or the value of EOF. In the ASCII character set, this includes the following characters (preceded by their numeric values, in octal): 040 sp 041 ``!'' 042 ``"'' 043 ``#'' 044 ``$'' 045 ``%'' 046 ``&'' 047 ``''' 050 ``('' 051 ``)'' 052 ``*'' 053 ``+'' 054 ``,'' 055 ``-'' 056 ``.'' 057 ``/'' 060 ``0'' 061 ``1'' 062 ``2'' 063 ``3'' 064 ``4'' 065 ``5'' 066 ``6'' 067 ``7'' 070 ``8'' 071 ``9'' 072 ``:'' 073 ``;'' 074 ``<'' 075 ``='' 076 ``>'' 077 ``?'' 100 ``@'' 101 ``A'' 102 ``B'' 103 ``C'' 104 ``D'' 105 ``E'' 106 ``F'' 107 ``G'' 110 ``H'' 111 ``I'' 112 ``J'' 113 ``K'' 114 ``L'' 115 ``M'' 116 ``N'' 117 ``O'' 120 ``P'' 121 ``Q'' 122 ``R'' 123 ``S'' 124 ``T'' 125 ``U'' 126 ``V'' 127 ``W'' 130 ``X'' 131 ``Y'' 132 ``Z'' 133 ``['' 134 ``'' 135 ``]'' 136 ``^'' 137 ``_'' 140 ```'' 141 ``a'' 142 ``b'' 143 ``c'' 144 ``d'' 145 ``e'' 146 ``f'' 147 ``g'' 150 ``h'' 151 ``i'' 152 ``j'' 153 ``k'' 154 ``l'' 155 ``m'' 156 ``n'' 157 ``o'' 160 ``p'' 161 ``q'' 162 ``r'' 163 ``s'' 164 ``t'' 165 ``u'' 166 ``v'' 167 ``w'' 170 ``x'' 171 ``y'' 172 ``z'' 173 ``{'' 174 ``|'' 175 ``}'' 176 ``~'' RETURN VALUES
The isprint() function returns zero if the character tests false and returns non-zero if the character tests true. COMPATIBILITY
The 4.4BSD extension of accepting arguments outside of the range of the unsigned char type in locales with large character sets is considered obsolete and may not be supported in future releases. The iswprint() function should be used instead. SEE ALSO
ctype(3), isalnum_l(3), iswprint(3), ascii(7) STANDARDS
The isprint() function conforms to ISO/IEC 9899:1990 (``ISO C90''). BSD
July 17, 2005 BSD
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