0

I have a file list in a text file. How can I get only folder names from this text file ? (folders with the same name will be written once)

/lib/i386-linux-gnu/libwrap.so.0.7.6     
/lib/i386-linux-gnu/libbsd.so.0  
/lib/i386-linux-gnu/libdbus-1.so.3.19.4  
/lib/i386-linux-gnu/libexpat.so.1.6.7   
/usr/bin/rakconvert  
/usr/bin/python-config  
/usr/bin/winecpp  
/usr/bin/wine  
/usr/bin/regedit  
/usr/bin/pycompile  
/usr/bin/msiexec

The content of this 1.txt file. If the output I want:

/lib/i386-linux-gnu/  
/usr/bin

All the searches I've done are about sending the file list to a file. "cat, dirname", etc. I didn't add them here because I used a lot of code.

Sorry for the lack of my question. Thanks

Improve this question
0

1 Answer 1

Reset to default
1

Treating this as a pure text-processing issue (i.e. ignoring the fact that Unix filenames can contain newlines, which is the reason you would not normally store pathnames in text files unless you know they are sane), we may remove anything after the last / character on each line and get the unique results through

$ sed 's,/[^/]*$,,' 1.txt | sort -u
/lib/i386-linux-gnu
/usr/bin

The sed expression s,/[^/]*$,, (which could also be written s/\/[^/]*$//) will remove anything matching /[^/]*$, i.e. a slash followed by any number of non-slash characters (through to the end of the line).

The sort -u at the end sorts the result a retains only the unique entries. If the data is already sorted, you could use uniq instead.

Improve this answer
1
  • Sen müthişsin. Tam kod açıklaması isteyecektim. Zaten yazdınız. Teşekkür ederim. Commented Jan 22, 2020 at 7:55

You must log in to answer this question.

Start asking to get answers

Find the answer to your question by asking.

Ask question

Explore related questions

See similar questions with these tags.