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linux的runuser命令

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  Linux下runuser命令不太经常用到,我们需要了解他的用法即可。下面由学习啦小编为大家整理了linux下runuser命令的相关知识,希望对大家有帮助!

  linux的runuser命令详解

  runuser --help

  用法:runuser [选项]... [-] [用户 [参数]... ]

  Change the effective user id and group id to that of USER. Only session PAM

  hooks are run, and there is no password prompt. This command is useful only

  when run as the root user. If run as a non-root user without privilege

  to set user ID, the command will fail as the binary is not setuid.

  As runuser doesn't run auth and account PAM hooks, it runs with lower overhead

  than su.

  -, -l, --login make the shell a login shell, uses runuser-l

  PAM file instead of default one

  -g --group=group specify the primary group

  -G --supp-group=group specify a supplemental group

  -c, --command=COMMAND pass a single COMMAND to the shell with -c

  --session-command=COMMAND pass a single COMMAND to the shell with -c

  and do not create a new session

  -f, --fast pass -f to the shell (for csh or tcsh)

  -m, --preserve-environment do not reset environment variables

  -p same as -m

  -s, --shell=SHELL run SHELL if /etc/shells allows it

  --help 显示此帮助信息并退出

  --version 显示版本信息并退出

  单独的"-"选项隐含了-l。如果不指定用户,则假设其为root。

  请向bug-coreutils@gnu.org 报告runuser 的错误

  GNU coreutils 项目主页:<http://www.gnu.org/software/coreutils/>

  GNU 软件一般性帮助:<http://www.gnu.org/gethelp/>

  请向<http://translationproject.org/team/zh_CN.html> 报告runuser 的翻译错误

  要获取完整文档,请运行:info coreutils 'runuser invocation'

  linux的runuser命令使用实例

  # For SELinux we need to use 'runuser' not 'su'

  if [ -x "/sbin/runuser" ]; then

  SU="/sbin/runuser -s /bin/sh"

  else

  SU="/bin/su -s /bin/sh"

  fi

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