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Shell Programming and Scripting

how to remove "../.. from a path"

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Top Forums Shell Programming and Scripting how to remove "../.. from a path"
# 8  
Old 08-28-2008
Code:
sed 's%^\.\./\.\.%%' file

If the search string doesn't match then no substitution will take place.

In your detailed example you showed that the leading slash should remain so this will turn the input ../../somepath into /somepath

If you already have the value in a variable, you can use the substitution facilities of the shell; this is more economical, robust, and elegant than passing the string to sed and reading it back.

Code:
PATH=${PATH#../..}

# 9  
Old 08-28-2008
maybe i cant understand what you want, but it sounds like you want to use the command "basename"
Basename - Wikipedia, the free encyclopedia
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