Remove filename is text file

Shell Programming and Scripting
1

Hello,

I got files full path in a text file like that

/main/k/kdelibs/kdelibs4c2a_3.5.10.dfsg.1-2ubuntu7_i386.deb
/main/k/kdelibs-experimental/libknotificationitem-dev_4.3.2-0ubuntu1_i386.deb
/main/k/kdemultimedia/dragonplayer_4.3.2-0ubuntu1_i386.deb
/main/k/kdenetwork/kget_4.3.2-0ubuntu4_i386.deb
/main/k/kdenetwork/libkopete-dev_4.3.2-0ubuntu4_i386.deb
/main/k/kdepim/kdepim-strigi-plugins_4.3.2-0ubuntu6_i386.deb

the out put i want is

/main/k/kdelibs/
/main/k/kdelibs-experimental/
/main/k/kdemultimedia/
/main/k/kdenetwork/
/main/k/kdenetwork/
/main/k/kdepim/

without .deb file name, that will be great if somebody can find solution.

Many thank

2

bash

while read line;do echo ${line%/*}/;done < file
3 
a=$(<"file")
IFS=" "
printf "%s\n" ${@%/*}
unset IFS
4

hi..

perl -wln -e 'print $1 if /^(.*\/).*\.deb/'

Regards.

5

WORKING GREAT, MANY THANKS

6

if you have dirname command, then you can do this.

$ dirname  /main/k/kdelibs/kdelibs4c2a_3.5.10.dfsg.1-2ubuntu7_i386.deb
/main/k/kdelibs
7

Or:

sed

sed 's [^/]*$  ' infile

zsh

print -l ${(j:/\n:)$(<infile)%/*}/

Perl:

perl -ple's|[^/]*$||' infile
8

Many thanks

---------- Post updated at 10:34 AM ---------- Previous update was at 10:16 AM ----------

Many thanks for reply , now i got a little problem getting many same lines like that

main/a/antlr/
main/a/apache2/
main/a/app-install-data-ubuntu/
main/a/apparmor/
main/a/apport/
main/a/apport/
main/a/apport/
main/a/apport/
main/a/apr-util/
main/a/apr-util/
main/a/apt/
main/a/apt/
main/a/apturl/

and the output i want is

main/a/antlr/
main/a/apache2/
main/a/app-install-data-ubuntu/
main/a/apparmor/
main/a/apport/
main/a/apr-util/
main/a/apt/
main/a/apturl/

want to remove lines if there is more than one times.

Many thanks

9 
awk 'sub(/[^\/]*$/,_)&&!__[$0]++' infile

With some AWK implementations you don't need to escape the forward slash inside a character class.

Easier to read:

awk '{
  sub(/[^\/]*$/, "")        # get rid of the filename
  if (t[$0]++ == 0) print   # print if seen for the first time  
  }' infile
10

Many thanks for reply, they are working great , a bit more study , is there any way to replace all .deb files in the text file with *.deb

input file

/main/k/kdelibs/kdelibs4c2a_3.5.10.dfsg.1-2ubuntu7_i386.deb
/main/k/kdelibs-experimental/libknotificationitem-dev_4.3.2-0ubuntu1_i386.deb
/main/k/kdemultimedia/dragonplayer_4.3.2-0ubuntu1_i386.deb
/main/k/kdenetwork/kget_4.3.2-0ubuntu4_i386.deb
/main/k/kdenetwork/libkopete-dev_4.3.2-0ubuntu4_i386.deb
/main/k/kdepim/kdepim-strigi-plugins_4.3.2-0ubuntu6_i386.deb

the output file will be like that

/main/k/kdelibs/*.deb
/main/k/kdelibs-experimental/*.deb
/main/k/kdemultimedia/*.deb
/main/k/kdenetwork/*.deb
/main/k/kdenetwork/*.deb
/main/k/kdepim/*.deb

Many thanks

11 
awk 'sub(/[^\/]*$/,"*.deb")&&!__[$0]++' infile

awk '{
  sub(/[^\/]*$/, "*.deb")   # modify the filename
  if (t[$0]++ == 0) print   # print if seen for the first time  
  }' infile
12

Working great, many thanks

13

I'v seen in another post that you wanted to remove duplicate lines
pipe the output or file file through the 'uniq' command and first through a 'sort' command if it's not already sorted.

14

... or use directly sort -u (if loosing the original order is not an issue).