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Full Discussion: Linux Mount Points usage check with shell script
Top Forums Shell Programming and Scripting Linux Mount Points usage check with shell script Post 302969530 by cjcox on Wednesday 23rd of March 2016 05:36:23 PM
Old 03-23-2016
script is broken, look at your loop and where the conditional check is.

Also, df is not du... combining the two may lead to unexpected results.

Consider the following (assumes Linux, but can be adjusted for others):

Code:
df -Phl -x tmpfs -x devtmpfs |
  sed -n -e 's/^\([/].*\)[ ]\+\([[:digit:].]\+[[:alpha:]]\)[ ]\+\([[:digit:].]\+[[:alpha:]]\)[ ]\+\([[:digit:].]\+[[:alpha:]]\)[ ]\+\([[:digit:].]\+\)[%][ ]\+\(.*\)/MAILTO=xyxz@abc.com;LIMIT=80;[ \5 -gt \$LIMIT ] \&\& echo -e "Filesystem: \1\\nSize:       \2\\nUsed:       \3\\nAvail:      \4\\nUse%:       \5\\nMounted:    \6" \| mailx -s "\1 usage over \$LIMIT %" \$MAILTO/p' |
  sh

 

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LEARN ABOUT V7

iswdigit

ISWDIGIT(3)						     Linux Programmer's Manual						       ISWDIGIT(3)

NAME

       iswdigit - test for decimal digit wide character

SYNOPSIS

       #include <wctype.h>

       int iswdigit(wint_t wc);

DESCRIPTION

       The  iswdigit() function is the wide-character equivalent of the isdigit(3) function.  It tests whether wc is a wide character belonging to
       the wide-character class "digit".

       The wide-character class "digit" is a subclass of the wide-character class "xdigit", and therefore also a subclass  of  the  wide-character
       class "alnum", of the wide-character class "graph" and of the wide-character class "print".

       Being a subclass of the wide character class "print", the wide-character class "digit" is disjoint from the wide-character class "cntrl".

       Being  a  subclass  of the wide-character class "graph", the wide-character class "digit" is disjoint from the wide-character class "space"
       and its subclass "blank".

       Being a subclass of the wide-character class "alnum", the wide-character class "digit" is disjoint from the wide-character class "punct".

       The wide-character class "digit" is disjoint from the wide-character class "alpha" and therefore also disjoint from its subclasses "lower",
       "upper".

       The wide-character class "digit" always contains exactly the digits '0' to '9'.

RETURN VALUE

       The  iswdigit()	function  returns  nonzero if wc is a wide character belonging to the wide-character class "digit".  Otherwise, it returns
       zero.

ATTRIBUTES

       For an explanation of the terms used in this section, see attributes(7).

       +-----------+---------------+----------------+
       |Interface  | Attribute	   | Value	    |
       +-----------+---------------+----------------+
       |iswdigit() | Thread safety | MT-Safe locale |
       +-----------+---------------+----------------+
CONFORMING TO

       POSIX.1-2001, POSIX.1-2008, C99.

NOTES

       The behavior of iswdigit() depends on the LC_CTYPE category of the current locale.

SEE ALSO

       isdigit(3), iswctype(3)

COLOPHON

       This page is part of release 4.15 of the Linux man-pages project.  A description of the project, information about reporting bugs, and  the
       latest version of this page, can be found at https://www.kernel.org/doc/man-pages/.

GNU
								    2015-08-08							       ISWDIGIT(3)
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