linux - 禁用终端命令

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想改进这个问题吗？Update the question所以堆栈溢出的值小于aa>。
我想禁用rm的使用，除非在某些情况下。我在remove文件中编写了一个名为.sh的函数，在实际调用rm之前，它会经过我想要强制执行的某些检查。然而，人们仍然可以进入终端，简单地调用rm函数，而不是使用remove。是否有方法禁用rm函数，除非由remove调用？我要让它看起来像“cccc”函数不存在于登录到终端的用户中，所有“存在”都是删除函数。
甚至可以更进一步，当用户调用rm时，它会在屏幕上打印一条声明，说要使用rm。
作为一个更广泛的问题，除了在某些情况下，是否有办法禁用终端命令？我知道我可以为remove创建一个需要root的别名，但这是一个简单而不太方便的方法。

#!/bin/bash

function rm {
  if [ $# -le 0 ]; then
    echo "Error: no arguments specified."
  else
    hasDir=0
    for arg in "$@"; do
      if [ -d "$arg" ]; then hasDir=1; fi
    done

    ac="Action canceled."
    resp=("y" "n" "e")

    sure=" "
    while [ "$sure" != "y" ] && [ "$sure" != "n" ]; do
      read -p "PERMANENT ACTION.  Are you sure? (y/n): " sure
    done

    if [ "$sure" == "n" ]; then echo "$ac"; return; fi


    if [ $hasDir -eq 1 ]; then
      direc=" "
      validResp=0
      while [ $validResp -eq 0 ]; do
        read -p "Remove all sub-directories? (y/n/e): " direc
        for ans in "${resp[@]}"; do
          if [ "$direc" == "$ans" ]; then validResp=1; fi
        done
      done

      if [ "$direc" == "e" ]; then echo "$ac"; return; fi
    else
      direc="n"
    fi



    check=" "
    validResp=0
    while [ $validResp -eq 0 ]; do
      read -p "Verify removal of each file? (y/n): " check
      for ans in "${resp[@]}"; do
        if [ "$check" == "$ans" ]; then validResp=1; fi
      done
    done

    if [ "$check" == "e" ]; then echo "$ac"; return; fi


    if [ "$direc" == "n" ]; then
      if [ "$check" == "n" ]; then
        for file in "$@"; do
          if [ ! -d "$file" ]; then command rm -f "$file"; fi
        done
      else
        for file in "$@"; do
          if [ ! -d "$file" ]; then command rm -i "$file"; fi
        done
      fi
    else
      if [ "$check" == "n" ]; then
        command rm -rf "$@"
      else
        command rm -ir "$@"
      fi
    fi
  fi
}

最佳答案

您可以覆盖rm（或任何其他命令）；内置的command允许您在必要时访问原始命令。

rm () {
    # Do something in addition to removing the file

    command rm "$@"
}

command禁用shell函数查找。

关于linux - 禁用终端命令，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/14905298/