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Check for a file and touch if not exist

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# 1  
Old 02-15-2013
Check for a file and touch if not exist
Hi,

I've a situation where i need to check for the file existence and create a zero byte file based on the parameter,in some cases i need to touch and in some case i dont need to touch with zero byte file please help me on parameterizing this touch command??

Regards.
San
# 2  
Old 02-15-2013
Just
Code:
touch filename

.
If filename exists, only its modification and access times will be changed. Data will remain the same.
If filename does not exist, a zero-byte file will be created with the current time as the access and modification time.

And if you don't want to modify the access and modification times when the file (a regular file) exists, try:
Code:
[[ -f filename ]] || touch filename

.
Last edited by elixir_sinari; 02-15-2013 at 02:10 AM..
# 3  
Old 02-15-2013
i need to have a touch file based on the argument i dont need it all the time only when needed..
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