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Shell Programming and Scripting
Correct bash substitution
Post 302449149 by teresaejunior on Saturday 28th of August 2010 05:30:31 PM
08-28-2010
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I have this situation in my script (simplified):
A=C
C=10
I need to get number 10 using just A variable.
I tried with :
echo $`echo $A` - but i get $C string (i need number)
Thanks very much for any help! (1 Reply)
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Is it possible with a bash variable to perform multiple substitution strings to one variable?
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OK, I'm striving to abide by all the rules this time.
Here is a fragment of my windows10/cygwin64/bash script:
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OK, I'm striving to abide by all the rules this time.
Here is a fragment of my windows10/cygwin64/bash script:
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LEARN ABOUT CENTOS
amstatus
AMSTATUS(8) System Administration Commands AMSTATUS(8) NAME
amstatus - display the state of an Amanda run SYNOPSIS
amstatus [--file amdumpfile] [--summary] [--dumping] [--waitdumping] [--waittaper] [--dumpingtape] [--writingtape] [--finished] [--failed] [--estimate] [--gestimate] [--stats] [--locale-independent-date-format] [--config] config DESCRIPTION
Amstatus gives the current state of the Amanda run specified by the config configuration. If there is no active Amanda running, it summarizes the result of the last run. It may also be used to summarize the results of a previous run. See the amanda(8) man page for more details about Amanda. OPTIONS
All options may be abbreviated to the shortest non-ambiguous sub-string. If no options are given, everything is displayed. [--config] config Specify the Amanda configuration you want to display the state for. --file amdumpfile Specify an alternate file instead of the amdump or amflush file. --summary Display a summary of the state of the run. --dumping Display all partitions that are dumping. --waitdumping|wdumping Display all partitions that are waiting to be dumped. --waittaper|wtaper Display all partitions dumped that are waiting to be written to tape. --dumpingtape|dtape Display all partitions that are dumping directly to tape. --writingtape|wtape Display all partitions that are writing to tape. --finished Display all partitions that are dumped and written to tape. --failed|error Display all partitions that failed. --estimate Display all partitions whose estimate is finished. Works only during the estimate phase. --gestimate|gettingestimate Display all partitions whose estimate is not finished. Works only during the estimate phase. --stats|statistics Display statistics about active-time of taper and dumpers. --locale-independent-date-format Output the date in a locale independent format. The format is the same executing: date +'%Y-%m-%d %H:%M:%S %Z' EXIT CODE
The exit code of amstatus is the ORed value of: 0 = success 1 = error 4 = a dle failed 8 = Don't know the status of a dle (RESULT_MISSING in the report) 16 = tape error or no more tape SEE ALSO
amanda(8), amcheck(8), amdump(8), amrestore(8), amadmin(8) The Amanda Wiki: : http://wiki.zmanda.com/ AUTHOR
Stefan G. Weichinger <sgw@amanda.org> Amanda 3.3.3 01/10/2013 AMSTATUS(8)