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Top Forums Shell Programming and Scripting How to check day name is it saturday in bash shell script? Post 303015271 by cplusplus1 on Saturday 31st of March 2018 04:39:45 PM
Old 03-31-2018
Need to add vaidation if day of week is 6 which is saturday

I have the following with in my existing bash shell file.

Code:
#here the below impala shell command only to be executed if day is saturday dayof week=6
if [$ date +%w]=6 then
  impala-shell -i $HOST_NAME --ssl -q "DROP TABLE $CURR_TAB_QUAL PURGE" 2>>$LOG_FILE
fi



  if [[ $? -eq 0 ]]; then
    log_message "Dropped $CURR_TAB_QUAL Successfully"
  else
    log_message "Drop of $CURR_TAB_QUAL Failed. Continuing" #Drop failed, still ignore and continue???
  fi

Thank you very much for the helpful info.

Last edited by cplusplus1; 03-31-2018 at 05:46 PM..
 

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DROP 
TABLE(7) SQL Commands DROP TABLE(7) NAME
DROP TABLE - remove a table SYNOPSIS
DROP TABLE [ IF EXISTS ] name [, ...] [ CASCADE | RESTRICT ] DESCRIPTION
DROP TABLE removes tables from the database. Only its owner can drop a table. To empty a table of rows without destroying the table, use DELETE [delete(7)] or TRUNCATE [truncate(7)]. DROP TABLE always removes any indexes, rules, triggers, and constraints that exist for the target table. However, to drop a table that is referenced by a view or a foreign-key constraint of another table, CASCADE must be specified. (CASCADE will remove a dependent view entirely, but in the foreign-key case it will only remove the foreign-key constraint, not the other table entirely.) PARAMETERS
IF EXISTS Do not throw an error if the table does not exist. A notice is issued in this case. name The name (optionally schema-qualified) of the table to drop. CASCADE Automatically drop objects that depend on the table (such as views). RESTRICT Refuse to drop the table if any objects depend on it. This is the default. EXAMPLES
To destroy two tables, films and distributors: DROP TABLE films, distributors; COMPATIBILITY
This command conforms to the SQL standard, except that the standard only allows one table to be dropped per command, and apart from the IF EXISTS option, which is a PostgreSQL extension. SEE ALSO
ALTER TABLE [alter_table(7)], CREATE TABLE [create_table(7)] SQL - Language Statements 2010-05-14 DROP TABLE(7)
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