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java: 批量添加文件xx.jar到环境变量CLASSPATH中（linuxos-shell脚本）

 

 

java: 批量添加文件xx.jar到环境变量CLASSPATH中（linuxos-shell脚本）

 

 

 

 

 

 一、版本1

 

 

1、脚本内容：/etc/profile


[root@openeuler libs]# cat /etc/profile
# /etc/profile

# System wide environment and startup programs, for login setup
# Functions and aliases go in /etc/bashrc

# 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.

pathmunge () {
    case ":${PATH}:" in
        *:"$1":*)
            ;;
        *)
            if [ "$2" = "after" ] ; then
                PATH=$PATH:$1
            else
                PATH=$1:$PATH
            fi
    esac
}


if [ -x /usr/bin/id ]; then
    if [ -z "$EUID" ]; then
        # ksh workaround
        EUID=`/usr/bin/id -u`
        UID=`/usr/bin/id -ru`
    fi
    USER="`/usr/bin/id -un`"
    LOGNAME=$USER
    MAIL="/var/spool/mail/$USER"
fi

# Path manipulation
if [ "$EUID" = "0" ]; then
    pathmunge /usr/sbin
    pathmunge /usr/local/sbin
else
    pathmunge /usr/local/sbin after
    pathmunge /usr/sbin after
fi

HOSTNAME=$(/usr/bin/hostnamectl --transient 2>/dev/null) || \
HOSTNAME=$(/usr/bin/hostname 2>/dev/null) || \
HOSTNAME=$(/usr/bin/uname -n)

HISTSIZE=1000
if [ "$HISTCONTROL" = "ignorespace" ] ; then
    export HISTCONTROL=ignoreboth
else
    export HISTCONTROL=ignoredups
fi

export PATH USER LOGNAME MAIL HOSTNAME HISTSIZE HISTCONTROL

for i in /etc/profile.d/*.sh /etc/profile.d/sh.local ; do
    if [ -r "$i" ]; then
        if [ "${-#*i}" != "$-" ]; then 
            . "$i"
        else
            . "$i" >/dev/null
        fi
    fi
done

unset i
unset -f pathmunge

# Source global bash config, when interactive but not posix or sh mode
if test "$BASH" &&\
   test -z "$POSIXLY_CORRECT" &&\
   test "${0#-}" != sh &&\
   test -r /etc/bashrc
then
   # Bash login shells run only /etc/profile
   # Bash non-login shells run only /etc/bashrc
   # Check for double sourcing is done in /etc/bashrc.
   . /etc/bashrc
fi



# david 2022-04-12

export JAVA_HOME=/usr/local/java/jdk17
export CLASSPATH=.:$JAVA_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin:/root/tools

# 去除PATH中的重复值 
export PATH=$(echo $PATH | tr ':' '\n' | sort | uniq | tr -s '\n' ':' | sed 's/:$//g')

[root@openeuler libs]#

 

 

2、脚本内容：load-java-jar

 

 


[root@openeuler libs]# cat load-java-jar 
#!/usr/bin/bash


# 脚本名称： load-java-jar
#
#
# 脚本功能： 将特定路径下的所有的xx.jar包，添加到环境变量"CLASSPATH"中。
#	     这种添加"xx.jar"包的方法，是临时起作用；
#
#	     每次电脑重启或者使用命令"source /etc/profile"，恢复系统默认配置。
#	     在这里，自己想恢复到哪个配置就选择哪个配置文件，不必强行使用
#	     文件“/etc/profile”。
#
#	     若想重新生效，需要重新运行脚本“load-java-jar”。
#
#
# 脚本运行方法： [root@openeuler libs]# source  load-java-jar 
#
#
# 脚本环境信息：
# 	[root@openeuler libs]# uname  -a
#		Linux openeuler 5.10.0-60.18.0.50.oe2203.x86_64 #1 SMP Wed Mar 30 03:12:24 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
#	[root@openeuler libs]# java  -version
#		java version "17.0.1" 2021-10-19 LTS
#		Java(TM) SE Runtime Environment (build 17.0.1+12-LTS-39)
#		Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode, sharing)
#	[root@openeuler libs]# 


# 这里是恢复系统默认配置；“/etc/profile”文件是可选项，你可以选择自己想要恢复的配置文件。
# 防止CLASSPATH多次重复设置；因为"CLASSPATH变量存在递归定义( CLASSPATH=${CLASSPATH}${jar_path} )"，会导致CLASSPATH重复设置。
source  /etc/profile


# 注意：插件使用者必须配置这个目录。jar_files=$( ls /绝对路径/*.jar )
# 设置xxx.jar文件所在的目录；注意这里要设置成为“绝对路径”。
jar_files=$( ls /root/user/lidawei/tmp/libs/*.jar )


# jar_path： 用于存储所有的xx.jar 文件的绝对路径。
jar_path=""


# 拼接字符串，并将这个字符串存储在变量“jar_path”之中
for x in ${jar_files} 
do
 	jar_path=${jar_path}":"${x}
done


# 设置环境变量
export CLASSPATH=${CLASSPATH}${jar_path}
echo "CLASSPATH_value := " ${CLASSPATH}

 

 

 

3、脚本应用：load-java-jar

 

 


[root@openeuler libs]# uname  -a
Linux openeuler 5.10.0-60.18.0.50.oe2203.x86_64 #1 SMP Wed Mar 30 03:12:24 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[root@openeuler libs]# java  --version
java 17.0.1 2021-10-19 LTS
Java(TM) SE Runtime Environment (build 17.0.1+12-LTS-39)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode, sharing)
[root@openeuler libs]# pwd
/root/user/lidawei/tmp/libs
[root@openeuler libs]# ls
load-java-jar  temp.jar  test.sh
[root@openeuler libs]# env
SHELL=/bin/bash
HISTCONTROL=ignoredups
HISTSIZE=1000
HOSTNAME=openeuler
JAVA_HOME=/usr/local/java/jdk17
PWD=/root/user/lidawei/tmp/libs
LOGNAME=root
MOTD_SHOWN=pam
HOME=/root
LANG=en_US.UTF-8
SSH_CONNECTION=10.10.10.12 49440 10.10.10.16 22
SELINUX_ROLE_REQUESTED=
TERM=xterm-256color
USER=root
SELINUX_USE_CURRENT_RANGE=
SHLVL=1
CLASSPATH=.:/usr/local/java/jdk17/lib
SSH_CLIENT=10.10.10.12 49440 22
PATH=/root/bin:/root/tools:/usr/bin:/usr/local/bin:/usr/local/java/jdk17/bin:/usr/local/sbin:/usr/sbin
SELINUX_LEVEL_REQUESTED=
MAIL=/var/spool/mail/root
SSH_TTY=/dev/pts/0
OLDPWD=/root
_=/usr/bin/env
[root@openeuler libs]# source  load-java-jar 


Welcome to 5.10.0-60.18.0.50.oe2203.x86_64

System information as of time:  Tue Apr 19 09:29:10 PM CST 2022

System load:    0.11
Processes:      225
Memory used:    8.5%
Swap used:      0%
Usage On:       7%
IP address:     10.10.10.16
IP address:     192.168.122.1
Users online:   1


CLASSPATH_value :=  .:/usr/local/java/jdk17/lib:/root/user/lidawei/tmp/libs/temp.jar
[root@openeuler libs]# env
SHELL=/bin/bash
HISTCONTROL=ignoredups
HISTSIZE=1000
HOSTNAME=openeuler
JAVA_HOME=/usr/local/java/jdk17
PWD=/root/user/lidawei/tmp/libs
LOGNAME=root
MOTD_SHOWN=pam
HOME=/root
LANG=en_US.UTF-8
SSH_CONNECTION=10.10.10.12 49440 10.10.10.16 22
SELINUX_ROLE_REQUESTED=
TERM=xterm-256color
USER=root
SELINUX_USE_CURRENT_RANGE=
SHLVL=1
CLASSPATH=.:/usr/local/java/jdk17/lib:/root/user/lidawei/tmp/libs/temp.jar
SSH_CLIENT=10.10.10.12 49440 22
PATH=/root/bin:/root/tools:/usr/bin:/usr/local/bin:/usr/local/java/jdk17/bin:/usr/local/sbin:/usr/sbin
SELINUX_LEVEL_REQUESTED=
MAIL=/var/spool/mail/root
SSH_TTY=/dev/pts/0
OLDPWD=/root
_=/usr/bin/env
[root@openeuler libs]# 
[root@openeuler libs]#

 

 

 

 

 二、版本2

 

1、脚本内容：load-java-jar

 


[root@openeuler libs]# cat load-java-jar 
#!/usr/bin/bash


# 脚本名称： load-java-jar
#
#
# 脚本功能： 将当前路径下的所有的xx.jar包，添加到环境变量"CLASSPATH"中。
#            这种添加"xx.jar"包的方法，是临时起作用；
#
#            每次电脑重启或者使用命令"source /etc/profile"，恢复系统默认配置。
#            在这里，自己想恢复到哪个配置就选择哪个配置文件，不必强行使用
#            文件“/etc/profile”。
#
#            若想重新生效，需要重新运行脚本“load-java-jar”。
#
# version = 2.0
#
#
# 脚本运行方法： [root@openeuler libs]# source  load-java-jar 
#
#
# 脚本环境信息：
#       [root@openeuler libs]# uname  -a
#               Linux openeuler 5.10.0-60.18.0.50.oe2203.x86_64 #1 SMP Wed Mar 30 03:12:24 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
#       [root@openeuler libs]# java  -version
#               java version "17.0.1" 2021-10-19 LTS
#               Java(TM) SE Runtime Environment (build 17.0.1+12-LTS-39)
#               Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode, sharing)
#       [root@openeuler libs]# 


# 这里是恢复系统默认配置；“/etc/profile”文件是可选项，你可以选择自己想要恢复的配置文件。
# 防止CLASSPATH多次重复设置；因为"CLASSPATH变量存在递归定义( CLASSPATH=${CLASSPATH}${jar_path} )"，会导致CLASSPATH重复设置。
source  /etc/profile


# 注意：插件使用者必须配置这个目录。jar_files=$( ls /绝对路径/*.jar )
# jar_files=$( ls /root/user/lidawei/tmp/libs/*.jar )

current_path=$(pwd)
echo current_path = ${current_path}
jar_files=$( ls ${current_path}/*.jar )


# jar_path： 用于存储所有的xx.jar 文件的绝对路径。
jar_path=""


# 拼接字符串，并将这个字符串存储在变量“jar_path”之中
for x in ${jar_files} 
do
        jar_path=${jar_path}":"${x}
done


# 设置环境变量
# echo "jar_path := " ${jar_path}
export CLASSPATH=${CLASSPATH}${jar_path}
echo "CLASSPATH_value := " ${CLASSPATH}
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]#

 

 

2、应用示例：

 


[root@openeuler libs]# uname  -a
Linux openeuler 5.10.0-60.18.0.50.oe2203.x86_64 #1 SMP Wed Mar 30 03:12:24 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
[root@openeuler libs]# java  --version
java 17.0.1 2021-10-19 LTS
Java(TM) SE Runtime Environment (build 17.0.1+12-LTS-39)
Java HotSpot(TM) 64-Bit Server VM (build 17.0.1+12-LTS-39, mixed mode, sharing)
[root@openeuler libs]# pwd
/root/user/lidawei/program/java/libs
[root@openeuler libs]# ls
last.jar  lidawei.java  load-java-jar  temp.jar
[root@openeuler libs]# env
SHELL=/bin/bash
HISTCONTROL=ignoredups
HISTSIZE=1000
HOSTNAME=openeuler
JAVA_HOME=/usr/local/java/jdk17
PWD=/root/user/lidawei/program/java/libs
LOGNAME=root
MOTD_SHOWN=pam
HOME=/root
LANG=en_US.UTF-8
SSH_CONNECTION=10.10.10.12 58123 10.10.10.16 22
SELINUX_ROLE_REQUESTED=
TERM=xterm-256color
USER=root
SELINUX_USE_CURRENT_RANGE=
SHLVL=1
CLASSPATH=.:/usr/local/java/jdk17/lib
SSH_CLIENT=10.10.10.12 58123 22
PATH=/root/tools:/usr/bin:/usr/local/bin:/usr/local/java/jdk17/bin:/usr/local/sbin:/usr/sbin:/root/bin
SELINUX_LEVEL_REQUESTED=
MAIL=/var/spool/mail/root
SSH_TTY=/dev/pts/0
_=/usr/bin/env
OLDPWD=/root
[root@openeuler libs]# source  load-java-jar 


Welcome to 5.10.0-60.18.0.50.oe2203.x86_64

System information as of time:  Sun May  1 01:48:45 AM CST 2022

System load:    0.08
Processes:      225
Memory used:    8.6%
Swap used:      0%
Usage On:       7%
IP address:     10.10.10.16
IP address:     192.168.122.1
Users online:   1


current_path = /root/user/lidawei/program/java/libs
CLASSPATH_value :=  .:/usr/local/java/jdk17/lib:/root/user/lidawei/program/java/libs/last.jar:/root/user/lidawei/program/java/libs/temp.jar
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]# env
SHELL=/bin/bash
HISTCONTROL=ignoredups
HISTSIZE=1000
HOSTNAME=openeuler
JAVA_HOME=/usr/local/java/jdk17
PWD=/root/user/lidawei/program/java/libs
LOGNAME=root
MOTD_SHOWN=pam
HOME=/root
LANG=en_US.UTF-8
SSH_CONNECTION=10.10.10.12 58123 10.10.10.16 22
SELINUX_ROLE_REQUESTED=
TERM=xterm-256color
USER=root
SELINUX_USE_CURRENT_RANGE=
SHLVL=1
CLASSPATH=.:/usr/local/java/jdk17/lib:/root/user/lidawei/program/java/libs/last.jar:/root/user/lidawei/program/java/libs/temp.jar
SSH_CLIENT=10.10.10.12 58123 22
PATH=/root/bin:/root/tools:/usr/bin:/usr/local/bin:/usr/local/java/jdk17/bin:/usr/local/sbin:/usr/sbin
SELINUX_LEVEL_REQUESTED=
MAIL=/var/spool/mail/root
SSH_TTY=/dev/pts/0
OLDPWD=/root
_=/usr/bin/env
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]# 
[root@openeuler libs]#

 

posted on 2022-04-13 00:57  lnlidawei  阅读(550)  评论(0)  编辑  收藏  举报