/etc/profile 缺少结束以平衡此 if 语句

Question

当我想在 Linux 上为 JAVA 配置环境变量时。我在文件中添加了一些句子，/etc/profile。现在里面的内容如下

# /etc/profile: system-wide .profile file for the Bourne shell (sh(1))
# and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).

if [ "$(id -u)" -eq 0 ]; then
  set PATH "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"
else
  set PATH "/usr/local/bin:/usr/bin:/bin:/usr/local/games:/usr/games"
fi
export PATH


if [ "${PS1-}" ]; then
  if [ "${BASH-}" ] && [ "$BASH" != "/bin/sh" ]; then
    # The file bash.bashrc already sets the default PS1.
    # PS1='\h:\w$ '
    if [ -f /etc/bash.bashrc ]; then
      . /etc/bash.bashrc
    fi
  else
    if [ "$(id -u)" -eq 0 ]; then
      set PS1 '# '
    else
      set PS1 '$ '
    fi
  fi
fi

if [ -d /etc/profile.d ]; then
  for i in /etc/profile.d/*.sh; do
    if [ -r $i ]; then
      . $i
    fi
  done
  unset i
fi

export JAVA_HOME=/home/co-eda/Downloads/jdk-18.0.1.1
export CLASSPATH=.:${JAVA_HOME}/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export PATH=${JAVA_HOME}/bin:$PATH

然后我用 source /etc/profile 更新环境变量并得到这个错误

/etc/profile (line 30): Missing end to balance this if statement
    if [ -r $i ]; then
    ^
from sourcing file /etc/profile
    called on line 185 of file /usr/share/fish/config.fish
in function '.' with arguments '/etc/profile'

有谁知道为什么会发生这种情况以及如何修改此代码以便我可以运行顺利进行？如能得到答复，将不胜感激

Answer 1

发生这种情况是因为您正试图从 fish shell 获取 /etc/profile。 fish 的条件语句与 sh/bash/zsh 和其他 Bourne-compatible shell 不兼容。即 fish 是 而不是 一个 Bourne-compatible shell.

此文件 (/etc/profile) 仅供 Bourne-compatible shell 使用，如顶部的注释块所指定

# /etc/profile: system-wide .profile file for the Bourne shell (sh(1))
# and Bourne compatible shells (bash(1), ksh(1), ash(1), ...).

如果您只想为 current 终端 window 更新环境变量，请尝试运行这个 -

exec sh
. /etc/profile
exec fish

如果要为所有个应用更新环境变量，需要注销再登录。

/etc/profile 缺少结束以平衡此 if 语句

/etc/profile missing end to balance this if statement

linux

bash

environment-variables