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Full Discussion: Array compare bash script
Top Forums Shell Programming and Scripting Array compare bash script Post 303000108 by MadeInGermany on Tuesday 4th of July 2017 11:17:41 AM
Old 07-04-2017
IFS includes a newline, so you do not need xargs to convert newline to a space character.
My script sample needs a sorted input.
For example
Code:
ARRAY2=($(df -Pk | awk '$6~/^[/]/{print$6}' | sort)) # df
ARRAY=($(awk '/^[^#]/ && $2~/[/]/ && $3!~/devpts|sysfs|proc/{print $2}' /etc/fstab | sort)) # fstab

BTW df does unneeded stat() and statfs(), a mount -v would be less overhead.

---------- Post updated at 10:17 ---------- Previous update was at 10:14 ----------

Please avoid unneeded cat! If you want to have /etc/fstab first in the line then do
Code:
ARRAY=($( </etc/fstab awk '/^[^#]/ && $2~/[/]/ && $3!~/devpts|sysfs|proc/{print $2}' | sort)) # fstab

This User Gave Thanks to MadeInGermany For This Post:
batchenr
 

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LEARN ABOUT BSD

getfsspec

GETFSENT(3)						     Library Functions Manual						       GETFSENT(3)

NAME

       getfsent, getfsspec, getfsfile, getfstype, setfsent, endfsent - get file system descriptor file entry

SYNOPSIS

       #include <fstab.h>

       struct fstab *getfsent()

       struct fstab *getfsspec(spec)
       char *spec;

       struct fstab *getfsfile(file)
       char *file;

       struct fstab *getfstype(type)
       char *type;

       int setfsent()

       int endfsent()

DESCRIPTION

       Getfsent,  getfsspec,  getfstype,  and  getfsfile each return a pointer to an object with the following structure containing the broken-out
       fields of a line in the file system description file, <fstab.h>.

	      struct fstab {
		   char *fs_spec;
		   char *fs_file;
		   char *fs_type;
		   int	fs_freq;
		   int	fs_passno;
	      };

       The fields have meanings described in fstab(5).

       Getfsent reads the next line of the file, opening the file if necessary.

       Setfsent opens and rewinds the file.

       Endfsent closes the file.

       Getfsspec and getfsfile sequentially search from the beginning of the file until a matching special file name or file system file  name	is
       found, or until EOF is encountered.  Getfstype does likewise, matching on the file system type field.

FILES

       /etc/fstab

SEE ALSO

       fstab(5)

DIAGNOSTICS

       Null pointer (0) returned on EOF or error.

BUGS

       All information is contained in a static area so it must be copied if it is to be saved.

4th Berkeley Distribution					   May 12, 1986 						       GETFSENT(3)
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