Replacing spacwe with underscore in file names

[coolboarderguy]

Hi All,

I'm trying to replace the space in file names with an underscore. Someone suggested using tr with ls -Q then piping to mv as below

for i in $(ls -Q); do mv $i $(echo $i | tr ' ' '_');done

bu it gives the following,

mv: cannot stat `"file': No such file or directory
mv: cannot stat `1"': No such file or directory
mv: cannot stat `"file': No such file or directory
mv: cannot stat `2"': No such file or directory
mv: cannot stat `"file': No such file or directory
mv: cannot stat `3"': No such file or directory
mv: cannot stat `"file': No such file or directory
mv: cannot stat `4"': No such file or directory

Why is it looking for the file name separately? A little confused here.

for i in $(ls -Q);do echo $i ;done
"file
1"
"file
2"
"file
3"
"file
4"

[cwaldbieser]

Try:

for file in *; do
newname=$(echo "$file" | tr " " _)
mv "$file" "$newname"
done


Or just use krename.

[ape]

Try this:


/bin/ls | while read i; do mv $i `echo $i | tr ' ' '_'`;done

--ape--

[stylishpants]

Simpler still:

rename 's/ /_/g' *

[coolboarderguy]

Thanx guys.

[bashologist]

Try:

for file in *; do
newname=$(echo "$file" | tr " " _)
mv "$file" "$newname"
done


Or just use krename.

This thread's getting old, but there's no need for piping the output into tr.
man bash -P 'less -p "Parameter Expansion"'
So, using parameter expansion you could do this.
mv "$file" "${file/ /_}"