[英]Bash Script Add, Delete users?
我目前正在嘗試創建一個腳本,該腳本在運行這個特定的 bash 腳本時為任何特定的人提供一個菜單。 在菜單上,我允許了三個選項(1. 添加用戶,2. 刪除用戶和 3. 退出)。 關於添加用戶選項,一旦選擇,應該有 2 個選項允許用戶手動輸入新用戶的詳細信息或通過文本文件添加多個用戶。 我已經能夠創建上述菜單/選項,盡管我無法手動為添加用戶和許多用戶通過 txt 文件以及刪除用戶創建任務的腳本/正文。
對我的代碼的任何幫助將不勝感激! 多謝!
這是我現在的腳本:
#!/bin/bash
clear
echo "########## MENU ############\n"
options=("add_user" "delete_user" "exit")
select opt in "${options[@]}"
do
case $opt in
"add_user")
clear
while [ 1 ]
do
clear
echo "1. Add user manually"
echo "2. Add user via TXT file"
read -p "Enter your choice" ch
case $ch in
1)
read -p "Enter user name : " useradd
read -p "Enter user password:" passwd
echo -e "Successfully added the user"
;;
2)
if [ $(id -u) -eq 0 ]; then
for row in `more $1`
do
username=${row%:*}
password=${row#*:}
egrep "^$username" /etc/passwd >/dev/null
if [ $? -eq 0 ]; then
echo "$username exists!"
exit 1
else
pass=$(perl -e 'print crypt($ARGV[0], "password")' $password)
useradd -m -p $pass $username
[ $? -eq 0 ] && echo "User has been added to system!" || echo "Failed to add a
user!"
fi
done
else
echo "Only root may add a user to the system"
exit 2
fi
esac
done
;;
"delete_user")
read -p "Enter a User name to delete "UNAME
passwd
deluser $UNAME
echo "User $UNAME has been deleted"
;;
"exit")
break
;;
esac
done
了解如何將大腳本分解為小部分。 下一個遠不是一個好的代碼,但你可以明白如何繼續。
#!/bin/bash
setps3() {
PS3="$1 (press enter for choices)>"
}
setmainprompt() {
setps3 "Main menu"
}
setaddprompt() {
setps3 "ADD USER menu"
}
pressenter() {
read -p "Press enter to continue:" _tmp
}
err() {
echo 1>&2 ${CMDNAME} ERROR: $*
return 1
}
msg() {
echo ${CMDNAME} NOTICE: $*
return 0
}
badchoice() {
err "Bad choice!";
return 1
}
do_add_one_user() {
_name="$1"
_pass="$2"
echo "add code here for adding one user: ${_name} ${_pass}"
pressenter
}
do_manual_add() {
read -p "Username:" _username
read -sp "Passowrd:" _password
echo
do_add_one_user "${_username}" "${_password}"
}
do_txt_add() {
read -p "Filename:" _filename
[[ -z "${_filename}" ]] && return
echo "add code here for adding users from ${_filename}"
echo "The code should call do_add_one_user function for every line"
pressenter
}
do_adduser() {
setaddprompt
_arr_add=("Add manually" "Add via TXT" "return to main menu" "exit program")
select add_action in "${_arr_add[@]}"
do
case "$REPLY" in
1) do_manual_add ;;
2) do_txt_add ;;
3) return ;;
4) exit 0 ;;
*) badchoice ;;
esac
setaddprompt
done
}
do_deleteuser() {
echo "enter code for deleting user here"
pressenter
}
uidcheck() {
owner=${owner:-$(/usr/bin/id -u)}
if [ "$owner" != "0" ]; then
err 'Must be root'
exit 1
fi
}
## MAIN PROGRAM
CMDNAME=$(basename $0)
#uidcheck #uncomment when need
_arr_main=("Add user" "Delete user" "Exit program")
setmainprompt
select main_action in "${_arr_main[@]}"
do
case "$REPLY" in
1) do_adduser ;;
2) do_deleteuser ;;
3) exit 0 ;;
*) badchoice ;;
esac
setmainprompt
done
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