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Homework and Emergencies Emergency UNIX and Linux Support Waiting for wildcard filename to exists in while loop Post 302916825 by rbatte1 on Friday 12th of September 2014 05:52:05 AM
Old 09-12-2014
It's always dangerous to want a wildcard character as part of a filename, but you can do this:-
Code:
until [ -f Trigger\*.done ]
do
 ......

You must make sure that you escape every usage of the file name correctly, and if you are setting it as a variable, you might need to double escape it, i.e.
Code:
file="Trigger\\\*.done"
until [ -f Trigger\*.done ]
do
 ......

... so you escape the escape character too so that doesn't get interpreted on setting the variable.


I still worry that you may make a mistake with serious consequences. You might be better using a file called All_Trigger.done instead for clarity and to minimise the risks, especially of any maintenance to your code later on.




Robin
 

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ALTER 
TRIGGER(7) SQL Commands ALTER TRIGGER(7) NAME
ALTER TRIGGER - change the definition of a trigger SYNOPSIS
ALTER TRIGGER name ON table RENAME TO newname DESCRIPTION
ALTER TRIGGER changes properties of an existing trigger. The RENAME clause changes the name of the given trigger without otherwise changing the trigger definition. You must own the table on which the trigger acts to be allowed to change its properties. PARAMETERS
name The name of an existing trigger to alter. table The name of the table on which this trigger acts. newname The new name for the trigger. NOTES
The ability to temporarily enable or disable a trigger is provided by ALTER TABLE [alter_table(7)], not by ALTER TRIGGER, because ALTER TRIGGER has no convenient way to express the option of enabling or disabling all of a table's triggers at once. EXAMPLES
To rename an existing trigger: ALTER TRIGGER emp_stamp ON emp RENAME TO emp_track_chgs; COMPATIBILITY
ALTER TRIGGER is a PostgreSQL extension of the SQL standard. SEE ALSO
ALTER TABLE [alter_table(7)] SQL - Language Statements 2010-05-14 ALTER TRIGGER(7)
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