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command substitution doubt

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# 1  
Old 05-10-2012
Question command substitution doubt
Hi,

I almost always use back quotes in scripts to assigin output of a command to a variable.
eg: file=`basename a/b/c/d/file`
year_mon=`date +%Y%m`

But the same can be achieved like:
file=$(basename a/b/c/d/file)
year_mon=$(date +%Y%m)

I would like to know if there is any advantage/disadvantage or performance issues for these methods. or Is it Ok to use any of these?

Thanks in advance!
# 2  
Old 05-10-2012
See if this gives any information you're looking for:
Useless use of backticks.
This User Gave Thanks to balajesuri For This Post:
wanderingmind16
# 3  
Old 05-10-2012
BashFAQ/082 - Greg's Wiki
This User Gave Thanks to itkamaraj For This Post:
wanderingmind16
# 4  
Old 05-10-2012
Oh.. Thanks a lot for that itkamaraj. Smilie I need to switch to $() Smilie

---------- Post updated at 10:29 AM ---------- Previous update was at 10:28 AM ----------

Thank you Balajesuri...
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