File permissions

[anon222]

A script for the thunar custom action that displays the file permissions and can change them.
Technicaly, it will work with directories but will not change them recursively. The files and directories inside will remain unchanged.
Also it works only for a single file.
This is not something I would recommend to someone who doen't understand file permissions.
Be carefull about symbolic links! Never use this on them! chmod changes the permissions of the pointed-to file.
Thunar custom action
Name:

Code:

Permissions

Description:

Code:

Displays and changes file permissions

Command:

Code:

/path/to/the/script %n

Appearance conditions:
Pattern:

Code:

*

Everything

The script:

Code:

#!/bin/bash
file="$@"

PERM="$(stat --printf=%a%A "$file")"
USER_="${PERM:0:1}"

if [[ $USER_ = 7 ]]; then TF1="TRUE"; TF2="TRUE"; TF3="TRUE"
  fi
if [[ $USER_ = 6 ]]; then  TF1="TRUE"; TF2="TRUE"; TF3="FALSE"
  fi
if [[ $USER_ = 5 ]]; then TF1="TRUE"; TF2="FALSE"; TF3="TRUE"
  fi
if [[ $USER_ = 4 ]]; then TF1="TRUE"; TF2="FALSE"; TF3="FALSE"
  fi
if [[ $USER_ = 3 ]]; then TF1="FALSE"; TF2="TRUE"; TF3="TRUE"
  fi
if [[ $USER_ = 2 ]]; then TF1="FALSE"; TF2="TRUE"; TF3="FALSE"
  fi
if [[ $USER_ = 1 ]]; then TF1="FALSE"; TF2="FALSE"; TF3="TRUE"
  fi
if [[ $USER_ = 0 ]]; then TF1="FALSE"; TF2="FALSE"; TF3="FALSE"
  fi

GRP_="${PERM:1:1}"
if [[ $GRP_ = 7 ]]; then TF4="TRUE"; TF5="TRUE"; TF6="TRUE"
  fi
if [[ $GRP_ = 6 ]]; then  TF4="TRUE"; TF5="TRUE"; TF6="FALSE"
  fi
if [[ $GRP_ = 5 ]]; then TF4="TRUE"; TF5="FALSE"; TF6="TRUE"
  fi
if [[ $GRP_ = 4 ]]; then TF4="TRUE"; TF5="FALSE"; TF6="FALSE"
  fi
if [[ $GRP_ = 3 ]]; then TF4="FALSE"; TF5="TRUE"; TF6="TRUE"
  fi
if [[ $GRP_ = 2 ]]; then TF4="FALSE"; TF5="TRUE"; TF6="FALSE"
  fi
if [[ $GRP_ = 1 ]]; then TF4="FALSE"; TF5="FALSE"; TF6="TRUE"
  fi
if [[ $GRP_ = 0 ]]; then TF4="FALSE"; TF5="FALSE"; TF6="FALSE"
  fi

ALL_="${PERM:2:1}"
if [[ $ALL_ = 7 ]]; then TF7="TRUE"; TF8="TRUE"; TF9="TRUE"
  fi
if [[ $ALL_ = 6 ]]; then  TF7="TRUE"; TF8="TRUE"; TF9="FALSE"
  fi
if [[ $ALL_ = 5 ]]; then TF7="TRUE"; TF8="FALSE"; TF9="TRUE"
  fi
if [[ $ALL_ = 4 ]]; then TF7="TRUE"; TF8="FALSE"; TF9="FALSE"
  fi
if [[ $ALL_ = 3 ]]; then TF7="FALSE"; TF8="TRUE"; TF9="TRUE"
  fi
if [[ $ALL_ = 2 ]]; then TF7="FALSE"; TF8="TRUE"; TF9="FALSE"
  fi
if [[ $ALL_ = 1 ]]; then TF7="FALSE"; TF8="FALSE"; TF9="TRUE"
  fi
if [[ $ALL_ = 0 ]]; then TF7="FALSE"; TF8="FALSE"; TF9="FALSE"
  fi

STAT_="${PERM:3:13}"
ans=$(zenity  --height=450 --width=350 --list  --text "File:\n<b>$file</b>\nPermissions:\n<b>${STAT_}</b>\nchange files permissions" --checklist  --column "pick" --column "options" \
"$TF1" "user-read" "$TF2" "user-write" "$TF3" "user-exec" "$TF4" "group-read" "$TF5" "group-write" "$TF6" "group-exec" "$TF7" "all-read" "$TF8" "all-write" "$TF9" "all-exec" --separator=":")
if [ "$ans" != "" ]; then
    searchuserread="user-read"
    searchuserwrite="user-write"
    searchuserexec="user-exec"
    user1="0"
    user2="0"
    user3="0"
    searchgroupread="group-read"
    searchgroupwrite="group-write"
    searchgroupexec="group-exec"
    group1="0"
    group2="0"
    group3="0"
    searchallread="all-read"
    searchallwrite="all-write"
    searchallexec="all-exec"
    all1="0"
    all2="0"
    all3="0"

    case $ans in  *"$searchuserread"*)
        user1="4" ;;
    esac

    case $ans in  *"$searchuserwrite"*)
        user2="2" ;;
    esac

    case $ans in  *"$searchuserexec"*)
        user3="1" ;;
    esac

    case $ans in  *"$searchgroupread"*)
        group1="4" ;;
    esac

    case $ans in  *"$searchgroupwrite"*)
        group2="2" ;;
    esac

    case $ans in  *"$searchgroupexec"*)
        group3="1" ;;
    esac

    case $ans in  *"$searchallread"*)
        all1="4" ;;
    esac

    case $ans in  *"$searchallwrite"*)
        all2="2" ;;
    esac

    case $ans in  *"$searchallexec"*)
        all3="1" ;;
    esac

    u=$(($user1 + $user2 + $user3))
    g=$(($group1 + $group2 + $group3))
    a=$(($all1 + $all2 + $all3))
    result="$u$g$a"
    chmod $result "$file" || { zenity --error --text="An error occurred!\ncheck if you are allowed\nto change permissions\nof the selected files"; }
fi

Bonus:
If you want to display the full path in the file name use

Code:

/path/to/the/script %f

for the Thunar custom action.
Cheers