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Full Discussion: How to read the output of a command line by line and pass it as a variable?
Top Forums Shell Programming and Scripting How to read the output of a command line by line and pass it as a variable? Post 303004125 by Samah on Wednesday 27th of September 2017 01:58:09 AM
Old 09-27-2017
Thanks for the quick response!

I am using netezza sql query like below, and the table contains some 2k records in it.
I want to read the result record by record and pass it in the next set of sql steps.
Code:
course=select course from table group by 1 order by 1;
N=0
for course in `nzsql -host -d db -Atc "course=select course from table group by 1 order by 1;"` ; do
   
      test[$N]="$course"
      echo "$N = $course"     #to confirm the entry
       
  let "N= $N + 1"
create table table2 as
select * from table where course=$course;
One more query here..Query2
Query3

when i use the above for loop it is reading the string line by line but if i have space or special characters between the string then it is considering as next line.
table contains the data like below.
Code:
Java
Oracle/SQL
ANSI SQL
SQL,DWH,DB
DB&Java

Above piece of code is taking the first line Java but when coming to the next line, it is splitting and taking the first word in $course.
 

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LEARN ABOUT DEBIAN

dbs_dumptabstruct

DBS_DUMPTABSTRUCT(1p)					User Contributed Perl Documentation				     DBS_DUMPTABSTRUCT(1p)

NAME

       dbs_dumptabstruct - Creates file set with SQL table schemas

DESCRIPTION

       dbs_dumptabstruct is an utility to create a file set with SQL table schemas.  For each table in the database dbs_dumptabstruct calls the
       appropriate dumper utility with the output directed to a file named table.sql in the current directory. dbs_dumptabstruct asks for a pass-
       word if necessary.

COMMAND LINE PARAMETERS

       Required command line parameters are the DBI driver ("Pg" for Postgres or "mysql" for MySQL) and the database name. The third parameter is
       optionally and specifies the database user and/or the host where the database resides ("racke", "racke@linuxia.de" or "@linuxia.de").

COMMAND LINE OPTIONS

       -d=OPTIONS, -o=OPTIONS, --dump-options=OPTIONS

       Pass options to the dumper utility, e.g. "--compatible=mysql40".

       -p, --pipe

       Prints the table dumps to standard output.

       -t TABLE[,TABLE,...], --tables=TABLE[,TABLE,...]

       Comma-separated list of tables to dump.

       --exclude-matching-tables=REGEXP

       Excludes any table matching the regular expression REGEXP from dumping.

BUGS

       Only mysql and Pg drivers are supported.

AUTHOR

       Stefan Hornburg (Racke), racke@linuxia.de

VERSION

       0.17

SEE ALSO

       perl(1), DBIx::Easy(3)

perl v5.8.8							    2007-02-01						     DBS_DUMPTABSTRUCT(1p)
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