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What is the use of xargs options -i / -I

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# 1  
Old 05-25-2011
Question What is the use of xargs options -i / -I
Hi Guys ,

I would like to know what is use of xargs -i .What is the difference between xargs -i and xargs -I .

Could any one explain with simple examples and what would be output if I dont use -i / -I

Thanks in advance,
Frinto
# 2  
Old 05-25-2011
-i and -I behaves same except that the placeholder is optional; if you omit the placeholder string, it defaults to the string {}.
Code:
xargs -I '{}' mv dir1/'{}' dir2/'{}'
xargs -i mv dir1/'{}' dir2/'{}'

# 3  
Old 05-25-2011
Hi Pravin ,

What if I don't use -i or -I . Just xargs , will it work .

xargs mv dir1/'{}' dir2/'{}' ( will this work )

If it does not work , it only does not work for this case or -i / -I always mandatory with xargs .

Thanks in advance
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