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Full Discussion: Differences in printed commands after execution with same code
Top Forums Shell Programming and Scripting Differences in printed commands after execution with same code Post 302573992 by mjf on Wednesday 16th of November 2011 08:22:46 AM
Old 11-16-2011
I'm trying to find the reason for the different behavior when the commands and arguments are printed using set -x when the same function is executed. In the Undesired Results, you can see that when $status_cnt = 2, the end result is the same (i.e. the loop continues) as in the Desired Results but when when $status_cnt = 1, the loop prematurely exits in the Undesired Results.
The purpose of the translate function tr -d [0-9] is to delete numerics before assigning to temp variable but why do I see "+ + tr -d 2" in the Undesired Results and why is the print order different when executing the same function?


Here is the function:

Code:
 
check_report_completion()
#ARG1 = jobid array
{
set -x
jobid=$1
status_cnt=9999
until [ $status_cnt -eq 0 ]
do
sleep 15 
sqlplus -s $AS_CONNECT_STRING<<EOF |read status_cnt
whenever sqlerror exit sql.sqlcode; 
SET FEEDBACK OFF;
SET PAGESIZE 0;
select count(*)
from rw_server_queue where job_id in ($jobid)
and status_code in (1,2,3,10);
EOF
temp1=`echo $status_cnt|tr -d [0-9]` 
temp2=${temp1:-"numer"}
if [ $temp2 = "numer" ] 
then
:
else
status_cnt=9999
break
fi
done
echo $status_cnt
}

Desired Results Execution:

Code:
 
+ + check_report_completion 0,14193,14194
+ jobid=0,14193,14194
+ status_cnt=9999
+ [ 9999 -eq 0 ]
+ sleep 15
+ read status_cnt
+ sqlplus -s /@compasp
+ 0<<
whenever sqlerror exit sql.sqlcode; 
SET FEEDBACK OFF;
SET PAGESIZE 0;
select count(*)
from rw_server_queue where job_id in (0,14193,14194)
and status_code in (1,2,3,10);
+ + echo 2
+ tr -d [0-9]
temp1=
+ temp2=numer
+ [ numer = numer ]
+ :
+ [ 2 -eq 0 ]
+ sleep 15
+ read status_cnt
+ sqlplus -s /@compasp
+ 0<<
whenever sqlerror exit sql.sqlcode; 
SET FEEDBACK OFF;
SET PAGESIZE 0;
select count(*)
from rw_server_queue where job_id in (0,14193,14194)
and status_code in (1,2,3,10);
+ + echo 1
+ tr -d [0-9]
temp1=
+ temp2=numer
+ [ numer = numer ]
+ :
+ [ 1 -eq 0 ]
+ sleep 15
+ read status_cnt

Undesired Results Execution:

Code:
 
+ + check_report_completion 0,28030,28031
+ jobid=0,28030,28031
+ status_cnt=9999
+ [ 9999 -eq 0 ]
+ sleep 15
+ read status_cnt
+ sqlplus -s /@compasp
+ 0<<
whenever sqlerror exit sql.sqlcode; 
SET FEEDBACK OFF;
SET PAGESIZE 0;
select count(*)
from rw_server_queue where job_id in (0,28030,28031)
and status_code in (1,2,3,10);
+ + tr -d 2
+ echo 2
temp1=
+ temp2=numer
+ [ numer = numer ]
+ :
+ [ 2 -eq 0 ]
+ sleep 15
+ read status_cnt
+ sqlplus -s /@compasp
+ 0<<
whenever sqlerror exit sql.sqlcode; 
SET FEEDBACK OFF;
SET PAGESIZE 0;
select count(*)
from rw_server_queue where job_id in (0,28030,28031)
and status_code in (1,2,3,10);
+ + echo 1
+ tr -d 2
temp1=1
+ temp2=1
+ [ 1 = numer ]
+ status_cnt=9999
+ break
+ echo 9999

 

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LEARN ABOUT DEBIAN

mdbfontset

mdbFontset(5)							 The m17n Library						     mdbFontset(5)

NAME

       mdbFontset - Fontset

DESCRIPTION

       The m17n library loads a fontset definition from the m17n database by the tags <fontset, FONTSET-NAME>. The plist format of the data is as
       follows:

       FONTSET ::= PER-SCRIPT * PER-CHARSET * FALLBACK *

       PER-SCRIPT ::= '(' SCRIPT PER-LANGUAGE + ')'

       PER-LANGUAGE ::= '(' LANGUAGE FONT-SPEC-ELEMENT + ')'

       PER-CHARSET ::= '(' CHARSET FONT-SPEC-ELEMENT + ')'

       FALLBACK ::= FONT-SPEC-ELEMENT

       FONT-SPEC-ELEMENT ::= '(' FONT-SPEC [ FLT-NAME ] ')'

       FONT-SPEC ::=
	    '(' [ FOUNDRY FAMILY
		  [ WEIGHT [ STYLE [ STRETCH [ ADSTYLE ]]]]]
		REGISTRY
	     [ OTF-SPEC ] [ LANG-SPEC ] ')'

       SCRIPT is a symbol of script name (e.g. latin, han) or nil. LANGUAGE is a two-letter symbol of language name code defined by ISO 639 (e.g.
       ja, zh) or nil.

       FONT-SPEC is to specify properties of a font. FOUNDRY to REGISTRY are symbols corresponding to Mfoundry to Mregistry property of a font.
       See m17nFont for the meaning of each property.

       OTF-SPEC is a symbol specifyng the required OTF features. The symbol name has the following syntax.

	 OTF-SPEC-NAME ::= ':otf=' SCRIPT LANGSYS ? GSUB-FEATURES ? GPOS-FEATURES ?

	 SCRIPT ::= SYMBOL
	 LANGSYS ::= '/' SYMBOL

	 GSUB-FEATURES ::= '=' FEATURE-LIST ?

	 GPOS-FEATURES ::= '+' FEATURE-LIST ?

	 FEATURE-LIST ::= '~' ? FEATURE ( ',' '~' ? FEATURE ',' )

       Here, FEATURE is a four-letter Open Type feature.

       LANG-SPEC is a symbol specifying the required language support. The symbol name has the following syntax.

	 LANG-SPEC-NAME ::= ':lang=' LANG

       Here, LANG is a two or three-letter ISO-639 language code.

       FLT-NAME is a name of Font Layout Table (Font Layout Table).

EXAMPLE

       This is an example of PER_SCRIPT.

       (han
	 (ja
	   ((jisx0208.1983-0)))
	 (zh
	   ((gb2312.1980-0)))
	 (nil
	   ((big5-0))))

       It instructs the font selector to use a font of registry 'jisx0208.1983-0' for a 'han' character (i.e. a character whose Mscript property
       is 'han') if the character has Mlanguage text property 'ja' in an M-text and the character is in the repertories of such fonts. Otherwise,
       try a font of registry 'gb2312.1980-0' or 'big5-0'. If that 'han' character does not have Mlanguage text property, try all three fonts.

       See the function mdraw_text() for the detail of how a font is selected.

COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License
       <http://www.gnu.org/licenses/fdl.html>.

Version 1.6.2							    12 Jan 2011 						     mdbFontset(5)
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