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Full Discussion: How can i split this.. :)?
Top Forums Shell Programming and Scripting How can i split this.. :)? Post 302989823 by bakunin on Wednesday 18th of January 2017 03:09:18 PM
Old 01-18-2017
Quote:
Originally Posted by RudiC
An array would be most suited to be assigned to, but sh doesn't have them.
This is right but you can pad by adding zeroes at the begin and then get the characters one at a time from right to left until you hit zero:

Code:
NUM=1
# NUM=12
# NUM=123

XNUM="00$NUM"

echo ${XNUM#${XNUM%?}}      # rightmost char
...etc.

(caution: not tested with a real Bourne shell as i do not have such a thing)

(addendum: if you use ksh (any ksh) you can typeset -RZ3 the variable and don't need the padding)

I hope this helps.

bakunin
This User Gave Thanks to bakunin For This Post:
RudiC
 

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LEARN ABOUT CENTOS

grub2-fstest

GRUB-FSTEST(3)						     Library Functions Manual						    GRUB-FSTEST(3)

NAME

       grub-fstest -- Debug tool for GRUB's filesystem driver.

SYNOPSIS

       grub-fstest [-c | --diskcount=NUM] [-C | --crypto]
		    [-d | --debug=STRING] [-K | --zfs-key=FILE|prompt]
		    [-n | --length=NUM] [-r | --root=DEVICE_NAME]
		    [-s | --skip=NUM] [-u | --uncompress] [-v | --verbose]
		    IMAGE_PATH <blocklist FILE | cat FILE |
		    cmp FILE LOCAL | cp FILE LOCAL | crc FILE |
		    hex FILE | ls PATH | xnu_uuid DEVICE>

DESCRIPTION

       grub-fstest is a tool for testing GRUB's filesystem drivers.  You should not normally need to run this program.

OPTIONS

       --diskcount=NUM
	      Specify the number of input files.

       --crypto
	      Mount cryptographic devices.

       --debug=STRING
	      Set debug environment variable.

       --zfs-key=FILE|prompt
	      Load ZFS cryptographic key.

       --length=NUM
	      Handle NUM bytes in output file.

       --root=DEVICE_NAME
	      Set root device.

       --skip=NUM
	      Skip NUM bytes from output file.

       --uncompress
	      Uncompress data.

       --verbose
	      Print verbose messages.

COMMANDS

       blocklist FILE
	      Display block list of FILE.

       cat FILE
	      Display FILE on standard output.

       cmp FILE LOCAL
	      Compare FILE with local file LOCAL.

       cp FILE LOCAL
	      Copy FILE to local file LOCAL.

       crc FILE
	      Display the CRC-32 checksum of FILE.

       hex FILE
	      Display contents of FILE in hexidecimal.

       ls PATH
	      List files at PATH.

       xnu_uuid DEVICE
	      Display the XNU UUID of DEVICE.

SEE ALSO

       info grub

								  Wed Feb 26 2014						    GRUB-FSTEST(3)
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