[Solved] a variable list filtering via sed + "blacklist-variable" && Print,sed & userdbctl an other Solution. (all under CCSA/GPL2/3, Take your pick, able to add ITBS)

[blackcrack]

dirlist=$(ls /home) =>

dirlist="blackcrack akira lost&found workshop garage office"
blacklist="lost&found garage workshop"

the way to the result
echo $result
blackcrack akira office

how become from the $dirlist i a filtering with the 3 words in the $blacklist
to a result with the rest of the words..

i have try it via oneliner :

[blackcrack@blackysgate ~/bearbeit-net]$ dirlist=$(ls /home) ; blacklist="lost&found garage workshop" ; echo $dirlist | sed 's/$blacklist//'
blackcrack akira lost&found workshop garage office
[blackcrack@blackysgate ~/bearbeit-net]$

but it works not really simply with sed.. mus i use there a loop or something over "while"

best

[PsypherPunk]

Presuming your variables are as above:

dirlist="blackcrack akira lost&found workshop garage office"
blacklist="lost&found garage workshop"

If you turn them into arrays then yes, you can exclude one from the other:

dirlist_array=(${dirlist})
blacklist_array=(${blacklist})

for x in ${blacklist_array[@]}
do
    dirlist_array=("${dirlist_array[@]/$x}")
done

That will give you:

$ echo ${dirlist_array[@]}
blackcrack akira office

Is that of any use?

[blackcrack]

@PsypherPunk
cool, thank you Roger :)))

i have saved that solution in my scriptfile..
the User listing have i solved now with :

#!/bin/bash

#https://www.gnu.org/software/gawk/manual/html_node/Printf-Examples.html
userlisting=$(userdbctl user | grep regular | awk '{printf "%s ",$1  }')

userf(){
userdbctl user | grep regular | awk '{print $6}'
}
listusers(){
echo ""
echo "--------------------------------------------------"
userdbctl user | grep regular | awk '{printf " %-20s %s\n", $1, $6  }'
echo "--------------------------------------------------"
echo ""
}

showdir(){
listusers | grep $username | awk '{print $2}'
}



 checktheuser(){
 #usershome=$(ls /home/) ; such=blubb ; if [ -z "${usershome%%*${such}*}" ]; then echo exist ; else echo exist not ; fi
 #  check $usershome  for existed users (find name)
 #usershome=$(ls /home/) ; such=$username ; if [ -z "${usershome%%*${such}*}" ]; then echo iss drin ; userexist=$username ; else askuser ; fi
 #username=blackcrack
 showudir=$(showdir)
 usershome=$userlisting ; such=$username ; if [ -z "${usershome%%*${such}*}" ]; then userexist=$username ; printf "the directory is : " ; echo "$showudir" ; echo "" ; else askuser ; checktheuser ; fi
   }

askuser(){

 #https://github.com/bobbyiliev/introduction-to-bash-scripting/issues/56
 #(find name in users, so call the names of the system)
 read -p 'The name of the NotebookUser ? ' username
 if [[ -z ${username} ]] ;  then  echo 'please insert some name ...' ; $0 ; else checktheuser ; fi
 }


echo $userlisting
echo ""
echo --------------------------------------------------------
userf
echo --------------liste------------------------------------
listusers
echo ""

askuser

and the Users desktop :

#!/bin/bash
usersdeskdir(){

 askusershome(){
 ls /home/
 }
 userlisting=$(userdbctl user | grep regular | awk '{printf "%s ",$1  }')

listusers(){
echo ""
echo " ---Please pick a User---------------------------------"
userdbctl user | grep regular | awk '{printf "|%20s : %-30s |%10s %s\n", $1, $6, bla , bla  }'
echo " ------------------------------------------------------"
echo ""
}
showdir(){
listusers | grep $username | awk '{print $4}'
}

 askuser(){
echo ""
echo ""
 #https://github.com/bobbyiliev/introduction-to-bash-scripting/issues/56
 #(find name in users, so call the names of the system)
 read -p ' The name of the NotebookUser ? : ' username
 if [[ -z ${username} ]] ;  then  echo 'please insert some name ...' ; $0 ; else checktheuser ; fi
   }
 checktheuser(){
 #usershome=$(ls /home/) ; such=blubb ; if [ -z "${usershome%%*${such}*}" ]; then echo exist ; else echo exist not ; fi
 #  check $usershome  for existed users (find name)
 #usershome=$(ls /home/) ; such=$username ; if [ -z "${usershome%%*${such}*}" ]; then echo iss drin ; userexist=$username ; else askuser ; fi
 #username=blackcrack
showudir=$(showdir)
 usershome=$userlisting ; such=$username ; if [ -z "${usershome%%*${such}*}" ]; then userexist=$username ; echo " The Directory is: $showudir" ; else askuser ; checktheuser ; fi
   }
 usersdesktop(){
  DERUSER=$username
  USERDIR=$(getent passwd $DERUSER | cut -f 6 -d :)
  USERDIRCONF=${XDG_CONFIG_HOME:-$USERDIR/.config}/user-dirs.dirs
  deskname=$(cat $USERDIRCONF | grep XDG_DESKTOP_DIR |cut -d '=' -f 2 -s | sed 's/"$HOME//'| sed 's/"//')
  usernamedesk=$showudir$deskname
  }
 checkuserdeskdir(){
 #if [[ "blubb" == "blubb" ]] ; then echo iss the same ; else echo is not the same ; fi
 if [[ "$userexist" == "$username" ]] ; then usersdesktop ; echo " The Desktopdirectory is: $usernamedesk" ; else echo there is an error ; fi
 }
listusers
askuser
checkuserdeskdir
}

usersdeskdir
echo ""
echo ""

and naturally can you add a -f "$USERHOME/.config}/user-dirs.dirs ask if the file exist be in able to create a desktop file.. as example..
thy again and have a nice Day :)

best