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renaming multiple files

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# 8  
Old 02-26-2010
Code:
tr -d '|' < pair_file | while read line; do mv "$line"; done

# 9  
Old 02-26-2010
Quote:
Originally Posted by fubaya
Code:
tr -d '|' < pair_file | while read line; do mv "$line"; done


There's no need for tr:
Code:
while IFS="|" read old new
do
  mv "$old" "new"
done < pair_file

# 10  
Old 02-26-2010
Quote:
Originally Posted by cfajohnson
There's no need for tr:
Less typing Smilie
# 11  
Old 02-26-2010
Quote:
Originally Posted by fubaya
Less typing Smilie

More importantly, less time, fewer processes, etc..
# 12  
Old 03-01-2010
thanks for all your replies.. It really made my job lot easier & simple.
Thanks again
# 13  
Old 03-01-2010
@cfajohnson

1) If necessary I will point you at strong advice about not ever changing "IFS".

2) I continue to stand by the use of "cat" to start pipelines in portable and readable scripts. Reading input from the last line the loop is just about comprehensible in example scripts but incomprehensible on a commercial scale.
# 14  
Old 03-01-2010
Quote:
Originally Posted by methyl
@cfajohnson

1) If necessary I will point you at strong advice about not ever changing "IFS".

Please do, and I'll refute it.

There are many time when changing IFS is necessary. There is no reason not to.
Quote:
2) I continue to stand by the use of "cat" to start pipelines in portable and readable scripts. Reading input from the last line the loop is just about comprehensible in example scripts but incomprehensible on a commercial scale.

If, by commercial scale, you mean very long blocks inside a loop, then that is just bad coding. The body should be encapsulated in a function.
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