bash - CENTOS 7 - 安装 jdk 后 $PATH 不正确
问题描述
我是 Linux 操作系统的新手,我在 centos7 上安装了 jdk。
现在每次登录时,我都会收到以下错误消息:
/usr/libexec/grepconf.sh: line 5: grep: command not found
-bash: /home/centos/.bash_profile: line 13: syntax error near unexpected token `newline'
-bash: /home/centos/.bash_profile: line 13: `export PATH=$PATH:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin:/usr/local/sbin:/usr/sbin:/home/centos/.local/bin:/home/centos/bin:/usr/bin/grep>'
并且所有命令都“未找到”
我发现这篇文章更新路径: https ://unix.stackexchange.com/questions/302743/centos-7-all-command-not-found-except-cd
我用这个命令更新路径:
PATH=/usr/local/bin:/usr/bin:bin
所以现在使用
sudo nano /home/centos/ .bash_profile
命令我在 bash_profile 文件中有以下内容:
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/.local/bin:$HOME/bin
export PATH
export PATH=$PATH:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin:/usr/local/sbin:/usr/sbin:/home/centos/.local/bin:/home/centos/bin:/usr/bin/grep>
什么是问题?我该如何解决所描述的错误?
第一次编辑以回答@航海问题:
这里是 .bash_profile 文件的内容:
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/.local/bin:$HOME/bin
export PATH
export PATH=$PATH:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin:/usr/local/sbin:/usr/sbin:/home/centos/.local/bin:/home/centos/bin:/usr/bin/grep
这里是 grepconf 的内容:
#!/bin/sh
case "$1" in
-c | --interactive-color)
! grep -qsi "^COLOR.*none" /etc/GREP_COLORS
;;
*)
echo >&2 "Invalid / no option passed, so far only -c | --interactive-color is supported."
exit 1
;;
esac
第二次编辑以回答评论中的问题:
这里 ldd /usr/bin/grep 命令输出:
linux-vdso.so.1 => (0x00007fff769b8000)
libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f0454df3000)
libc.so.6 => /lib64/libc.so.6 (0x00007f0454a26000)
libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f0454809000)
/lib64/ld-linux-x86-64.so.2 (0x000055ce09e0c000)
这里是 ls -l /lib64/ld* 的结果
[centos@serveur-1 ~]$ ls -l /lib64/ld*
-rwxr-xr-x 1 root root 163400 Jan 29 18:55 /lib64/ld-2.17.so
lrwxrwxrwx 1 root root 10 Feb 20 21:51 /lib64/ld-linux-x86-64.so.2 -> ld-2.17.so
每次我注销,然后我登录时,我总是得到“找不到命令”,除了一些命令,例如:
java -version
所以每次我必须输入“PATH=/usr/local/bin:/usr/bin:bin/”(在这个网站上找到答案)并且每次我输入 echo $PATH 时,输出都会越来越复杂:
[centos@serveur-1 ~]$ echo $PATH
$PATH:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin:/usr/local/sbin:/usr/sbin:/home/centos/.local/bin:/home/centos/bin:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin:/usr/local/sbin:/usr/sbin:/home/centos/.local/bin:/home/centos/bin:/usr/bin/grep
我想 $PATH 登录后内容很糟糕。
那么如何才能最终解决呢?
@tripleee 的第三次编辑:这里 .bashrc 文件内容:
[centos@serveur-1 ~]$ sudo nano /home/centos/.bashrc
GNU nano 2.3.1 File: /home/centos/.bashrc
# .bashrc
# Source global definitions
if [ -f /etc/bashrc ]; then
. /etc/bashrc
fi
# Uncomment the following line if you don't like systemctl's auto-paging feature:
# export SYSTEMD_PAGER=
# User specific aliases and functions
它谈到/etc/bashrc,所以这是它的内容:
[centos@serveur-1 ~]$ sudo nano /etc/bashrc
GNU nano 2.3.1 File: /etc/bashrc
# /etc/bashrc
# System wide functions and aliases
# Environment stuff goes in /etc/profile
# It's NOT a good idea to change this file unless you know what you
# are doing. It's much better to create a custom.sh shell script in
# /etc/profile.d/ to make custom changes to your environment, as this
# will prevent the need for merging in future updates.
# are we an interactive shell?
if [ "$PS1" ]; then
if [ -z "$PROMPT_COMMAND" ]; then
case $TERM in
xterm*|vte*)
if [ -e /etc/sysconfig/bash-prompt-xterm ]; then
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-xterm
elif [ "${VTE_VERSION:-0}" -ge 3405 ]; then
PROMPT_COMMAND="__vte_prompt_command"
else
PROMPT_COMMAND='printf "\033]0;%s@%s:%s\007" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOM$
fi
;;
screen*)
if [ -e /etc/sysconfig/bash-prompt-screen ]; then
PROMPT_COMMAND=/etc/sysconfig/bash-prompt-screen
else
PROMPT_COMMAND='printf "\033k%s@%s:%s\033\\" "${USER}" "${HOSTNAME%%.*}" "${PWD/#$HOM$
fi
;;
*)
[ -e /etc/sysconfig/bash-prompt-default ] && PROMPT_COMMAND=/etc/sysconfig/bash-prompt-de$
;;
esac
fi
# Turn on parallel history
shopt -s histappend
history -a
# Turn on checkwinsize
shopt -s checkwinsize
[ "$PS1" = "\\s-\\v\\\$ " ] && PS1="[\u@\h \W]\\$ "
# You might want to have e.g. tty in prompt (e.g. more virtual machines)
# and console windows
# If you want to do so, just add e.g.
# if [ "$PS1" ]; then
# PS1="[\u@\h:\l \W]\\$ "
# fi
# to your custom modification shell script in /etc/profile.d/ directory
fi
if ! shopt -q login_shell ; then # We're not a login shell
# Need to redefine pathmunge, it get's undefined at the end of /etc/profile
pathmunge () {
case ":${PATH}:" in
*:"$1":*)
;;
*)
if [ "$2" = "after" ] ; then
PATH=$PATH:$1
else
PATH=$1:$PATH
fi
esac
}
# By default, we want umask to get set. This sets it for non-login shell.
# Current threshold for system reserved uid/gids is 200
# You could check uidgid reservation validity in
# /usr/share/doc/setup-*/uidgid file
if [ $UID -gt 199 ] && [ "`/usr/bin/id -gn`" = "`/usr/bin/id -un`" ];
then
umask 002
else
umask 022
fi
SHELL=/bin/bash
# Only display echos from profile.d scripts if we are no login shell
# and interactive - otherwise just process them to set envvars
for i in /etc/profile.d/*.sh; do
if [ -r "$i" ]; then
if [ "$PS1" ]; then
. "$i"
else
. "$i" >/dev/null
fi
fi
done
unset i
unset -f pathmunge
fi
# vim:ts=4:sw=4
当你来自“Windows世界”时,很难理解这种机制......
解决方案
通过更新 .bash_profile 解决如下:
# .bash_profile
# Get the aliases and functions
if [ -f ~/.bashrc ]; then
. ~/.bashrc
fi
# User specific environment and startup programs
PATH=$PATH:$HOME/.local/bin:$HOME/bin:/usr/local/bin:/usr/bin:/bin:/opt/jdk1.8.0_192/bin:/opt/jdk1.8.0_192/jre/bin
export PATH
我是 Centos 的新手,所以我希望我能找回我的 2 分(被否决票删除):
- 我已经编辑了我的问题并对其进行了结构化,以回答评论中提出的问题
- 我一直在寻找答案(见链接),但我不明白所有的说明,所以可能很难说清楚
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