Double substitution in one line in bash script

Asked Sep 06 '15 at 02:22

Active Sep 06 '15 at 02:22

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I want to change extension of a file path and turn it into a full path. removing the first . and then the extension, adding new extension and current directory path.

something like this but I get a substitution error.

echo `pwd` $(echo ${${FILENAME#?}%.*}".spindens.cube")

I know I can do this by two different substitution steps, I was just going to learn from this community to code cleaner.

Thanks in advance

asked Sep 06 '15 at 02:22

Sarah Aria

aside: You can do `echo "$PWD"` instead of `echo $(pwd)`. It's cleaner and doesn't involve a subshell. – kojiro Sep 06 '15 at 02:38
Wouldn't basename be the tool for that task? – some-non-descript-user Sep 06 '15 at 12:18
basename will remove the path, ./abx/abc.out -> abc.out not /abx/abc.out – Sarah Aria Sep 06 '15 at 12:45

Double substitution in one line in bash script

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