来自wiki 可执行文件和可链接格式:
这些段包含运行时执行文件所必需的信息,而段包含用于链接和重定位的重要数据.整个文件中的任何字节最多只能由一个部分拥有,并且可能存在不属于任何部分的孤立字节.
但是段和段之间有什么区别？在可执行的ELF文件中,段是否包含一个或多个部分？
我正在尝试将用户切换到tomcat7用户以设置SSH证书.
当我这样做时su tomcat7,没有任何反应.
whoami 做完后仍然是ruturns root su tomcat7
做一个more /etc/passwd,我得到以下结果,清楚地表明tomcat7用户存在:
root:x:0:0:root:/root:/bin/bash
daemon:x:1:1:daemon:/usr/sbin:/bin/sh
bin:x:2:2:bin:/bin:/bin/sh
sys:x:3:3:sys:/dev:/bin/sh
sync:x:4:65534:sync:/bin:/bin/sync
games:x:5:60:games:/usr/games:/bin/sh
man:x:6:12:man:/var/cache/man:/bin/sh
lp:x:7:7:lp:/var/spool/lpd:/bin/sh
mail:x:8:8:mail:/var/mail:/bin/sh
news:x:9:9:news:/var/spool/news:/bin/sh
uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh
proxy:x:13:13:proxy:/bin:/bin/sh
www-data:x:33:33:www-data:/var/www:/bin/sh
backup:x:34:34:backup:/var/backups:/bin/sh
list:x:38:38:Mailing List Manager:/var/list:/bin/sh
irc:x:39:39:ircd:/var/run/ircd:/bin/sh
gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh
nobody:x:65534:65534:nobody:/nonexistent:/bin/sh
libuuid:x:100:101::/var/lib/libuuid:/bin/sh
messagebus:x:101:104::/var/run/dbus:/bin/false
colord:x:102:105:colord colour management daemon,,,:/var/lib/colord:/bin/false
saned:x:103:106::/home/saned:/bin/false
tomcat7:x:104:107::/usr/share/tomcat7:/bin/false
我正在努力解决的问题是Hudson中的这个错误:
Command "git fetch -t git@________.co.za:_______/_____________.git +refs/heads/*:refs/remotes/origin/*" returned status code 128: Host key verification failed.
这是我的Dockerfile,它需要一个现有的hudson war文件和tar并且构建映像的配置,hudson运行正常,它只是因为用户tomcat7不存在的证书而无法访问git.
FROM debian:wheezy
# install java on image
RUN apt-get update
RUN apt-get install -y openjdk-7-jdk tomcat7
# install …我无法让tmux显示边框线.它们是用x和q创建的.这是一个debian squeeze服务器,locale设置为en_US UTF8.我也尝试过添加
# instructs tmux to expect UTF-8 sequences
setw -g utf8 on
set -g status-utf8 on
到.tmux.conf的行.似乎没什么用.我不确定这是否是一个语言环境问题.它在其他服务器上正确显示,但不在debian上显示.我很感激您提供的任何提示!谢谢...
我在Ubuntu上安装了sbt.
:~/bin/sbt/bin$ ls
classes sbt sbt-launch.jar target
jansi.jar sbt.bat sbt-launch-lib.bash win-sbt
但是,每当我尝试启动sbt(从sbt所在的同一目录)时,它都不起作用:
No command 'sbt' found, did you mean:
Command 'skt' from package 'latex-sanskrit' (universe)
Command 'sb2' from package 'scratchbox2' (universe)
Command 'sbd' from package 'cluster-glue' (main)
Command 'mbt' from package 'mbt' (universe)
Command 'sbmt' from package 'atfs' (universe)
Command 'lbt' from package 'lbt' (universe)
Command 'st' from package 'suckless-tools' (universe)
Command 'sb' from package 'lrzsz' (universe)
我是linux的新手,我不知道如何解决这个问题.
我的问题非常基础,就像我现在所知道的那样.
我是Linux的长期用户,但最近才对编程感兴趣.我看到,在Ubuntu软件仓库很多流行的应用程序有-dev包(如洋泾浜-dev的除了洋泾浜).我的问题是:
这些包里有什么？如何下载pidgin-dev帮助开发Pidgin？它是否为创建给定应用程序的插件所需的工具的依赖性检查一样简单？
我希望-dev包中有大量文档,但如果有,我无法弄清楚如何访问它.我正在考虑像man-page这样的东西,但对编辑代码很有用.
任何和所有建议超过欢迎!
我是Debian用户,我想安装python-dev,但是当我在shell中以root身份运行代码时:
# aptitude install python-dev
我收到以下错误:
Traceback (most recent call last):
File "/usr/bin/apt-listchanges", line 28, in <module>
import apt_pkg
ImportError: No module named apt_pkg
什么似乎是问题,我该如何解决？
我在一台debian机器上有一个高度流量的应用程序,而apache开始表现得很奇怪.
每次我启动apache时,会产生大量的apache进程,应用程序根本不加载,并且很快整个机器冻结,必须重新启动才能重启.
这是我在启动apache后立即获得的顶部:
top - 20:14:44 up 1:16, 2 users, load average: 0.48, 0.10, 0.03 Tasks: 330 total, 5 running, 325 sleeping, 0 stopped, 0 zombie Cpu(s): 12.0%us, 21.4%sy, 0.0%ni, 65.7%id, 0.2%wa, 0.1%hi, 0.7%si, 0.0%st Mem: 8179920k total, 404984k used, 7774936k free, 60716k buffers Swap: 2097136k total, 0k used, 2097136k free, 43424k cached 10251 www-data 15 0 467m 8100 4016 S 6 0.1 0:00.04 apache2 10262 www-data 15 0 467m 8092 4012 S 6 0.1 0:00.05 apache2 10360 www-data 15 …
我在Linux Debian(Squeeze)上安装Apache Solr.我被指示安装sun-java jdk 1st.然后告诉我应该使用该命令sudo update-alternatives --config java来确保特定的java(sun-java)是默认的运行时.然而,当我运行此命令时,我得到:
There are 3 choices for the alternative java (providing /usr/bin/java).
Selection Path Priority Status
------------------------------------------------------------
* 0 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 auto mode
1 /usr/bin/gij-4.4 1044 manual mode
2 /usr/lib/jvm/java-6-openjdk/jre/bin/java 1061 manual mode
3 /usr/lib/jvm/java-6-sun/jre/bin/java 63 manual mode
Press enter to keep the current choice[*], or type selection number:
那么我应该选择哪个数字将sun-java作为默认运行时？此外,自动和手动模式到底意味着什么？如果我选择上面的3并运行update-alternative命令,我会收到与上面相同的输出,除了*现在位于3的前面之外,似乎没有任何改变,尽管它仍然是读取手动模式.
有没有办法确认我所做的是正确的？
到目前为止,我已经尝试了以下命令:
sudo apt-get remove mysql-server mysql-client mysql-common
sudo apt-get purge mysql-server mysql-client mysql-common
sudo apt-get autoremove
但每当我尝试使用以下命令找到MySQL时,我会得到一个与MySQL相关的文件列表:
shell>> locate mysql
输出:
/etc/mysql
/etc/apparmor.d/usr.sbin.mysqld
/etc/apparmor.d/abstractions/mysql
/etc/apparmor.d/cache/usr.sbin.mysqld
/etc/apparmor.d/cache/usr.sbin.mysqld-akonadi
/etc/apparmor.d/local/usr.sbin.mysqld
/etc/bash_completion.d/mysqladmin
/etc/init/mysql.conf
/etc/logcheck/ignore.d.paranoid/mysql-server-5_5
/etc/logcheck/ignore.d.server/mysql-server-5_5
/etc/logcheck/ignore.d.workstation/mysql-server-5_5
/etc/logrotate.d/mysql-server
/etc/mysql/conf.d
/etc/mysql/debian-start
/etc/mysql/debian.cnf
/etc/mysql/conf.d/mysqld_safe_syslog.cnf
/home/pkr/.mysql_history
/home/pkr/.cache/software-center/piston-helper/rec.ubuntu.com,api,1.0,recommend_app,libqt4-sql-mysql,,349051c3a57da571aa832adb39177aff
/home/pkr/.cache/software-center/piston-helper/rec.ubuntu.com,api,1.0,recommend_app,mysql-client,,cbf77a486cdc80547317981a33144427
/home/pkr/.cache/software-center/piston-helper/rec.ubuntu.com,api,1.0,recommend_app,mysql-client,,de8220dee4d957a9502caa79e8d2fdda
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,any,any,any,libqt4-sql-mysql,page,1,helpful,,17fb2e657321dc51526ee8fe9928da30
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,any,any,any,mysql-client,page,1,helpful,,a4c1b6e8200f36ab5745c6f81f14da0a
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,ubuntu,oneiric,any,libqt4-sql-mysql,page,1,helpful,,c54295fb82b8183350cd34f22c3547ef
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,ubuntu,oneiric,any,mysql-client,page,1,helpful,,fcf201c1abff3f774af89173a84de2cc
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,ubuntu,precise,any,libqt4-sql-mysql,page,1,helpful,,0cd86648584efeccfb16119012f89540
/home/pkr/.cache/software-center/rnrclient/reviews.ubuntu.com,reviews,api,1.0,reviews,filter,en,ubuntu,precise,any,mysql-client,page,1,helpful,,eb84724e9da7851ff8862a227d8bac59
/home/pkr/.local/share/akonadi/mysql.conf
/home/pkr/.local/share/akonadi/db_data/mysql
/home/pkr/.local/share/akonadi/db_data/mysql.err
/home/pkr/.local/share/akonadi/db_data/mysql.err.old
/home/pkr/.local/share/akonadi/db_data/mysql/columns_priv.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/columns_priv.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/columns_priv.frm
/home/pkr/.local/share/akonadi/db_data/mysql/db.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/db.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/db.frm
/home/pkr/.local/share/akonadi/db_data/mysql/event.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/event.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/event.frm
/home/pkr/.local/share/akonadi/db_data/mysql/func.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/func.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/func.frm
/home/pkr/.local/share/akonadi/db_data/mysql/general_log.CSM
/home/pkr/.local/share/akonadi/db_data/mysql/general_log.CSV
/home/pkr/.local/share/akonadi/db_data/mysql/general_log.frm
/home/pkr/.local/share/akonadi/db_data/mysql/help_category.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/help_category.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/help_category.frm
/home/pkr/.local/share/akonadi/db_data/mysql/help_keyword.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/help_keyword.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/help_keyword.frm
/home/pkr/.local/share/akonadi/db_data/mysql/help_relation.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/help_relation.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/help_relation.frm
/home/pkr/.local/share/akonadi/db_data/mysql/help_topic.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/help_topic.MYI
/home/pkr/.local/share/akonadi/db_data/mysql/help_topic.frm
/home/pkr/.local/share/akonadi/db_data/mysql/host.MYD
/home/pkr/.local/share/akonadi/db_data/mysql/host.MYI …我在使用python 2.7.9-2 amd64的Debian 8系统上遇到了问题:
marius@pydev:/usr/lib/python2.7/dist-packages/urllib3/contrib$ pip search doo
Traceback (most recent call last):
File "/usr/bin/pip", line 9, in <module>
load_entry_point('pip==1.5.6', 'console_scripts', 'pip')()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 356, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2476, in load_entry_point
return ep.load()
File "/usr/lib/python2.7/dist-packages/pkg_resources.py", line 2190, in load
['__name__'])
File "/usr/lib/python2.7/dist-packages/pip/__init__.py", line 74, in <module>
from pip.vcs import git, mercurial, subversion, bazaar # noqa
File "/usr/lib/python2.7/dist-packages/pip/vcs/mercurial.py", line 9, in <module>
from pip.download import path_to_url
File "/usr/lib/python2.7/dist-packages/pip/download.py", line 22, in <module>
import requests, six …