E45 readonly option is set add to override что делать
Comments
zuloloxi commented Jan 18, 2015
The text was updated successfully, but these errors were encountered:
igrigorik commented Jan 18, 2015
urticadioica commented Jan 19, 2015
I messed up. #144 should fix this, I hope. If @zuloloxi could confirm this works right, that would be great.
igrigorik commented Jan 19, 2015
@zuloloxi can you give it a try on your end before we push a new release?
That (or something close to it) should do the trick.
zuloloxi commented Jan 19, 2015
I modified the file on my win system and,
It works :
vimgolf put 5192f96ad8df110002000002
Downloading Vimgolf challenge: 5192f96ad8df110002000002
Launching VimGolf session for challenge: 5192f96ad8df110002000002
Here are your keystrokes:
Success! Your output matches. Your score: 14
[w] Upload result and retry the challenge
[x] Upload result and quit
[r] Do not upload result and retry the challenge
[q] Do not upload result and quit
Choice> w
Uploading to VimGolf.
Uploaded entry.
igrigorik commented Jan 19, 2015
0.4.8 is out with the bugfix.
zuloloxi commented Jan 19, 2015
You can’t perform that action at this time.
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How can I exit from read-only mode in Vim?
I opened a file in readonly mode; is there a way to get out of readonly mode?
7 Answers 7
That unsets the read-only flag, but if the underlying file is still not writable by you then vim still will be unable to write to it.
You can run chmod from within vim:
! means run a shell command, and % is the current filename. You can also just force the file write:
While :set noro does the job, it doesn’t check if the file is opened by another vim instance or updates the file if changed externally.
In order to make it editable and check for swap files (which is the default opening a file with vim) just use the edit command (:help edit):
Note, if the file has been manipulated ever since (even outside of vim), it will update the changes in the current buffer (which I find normally desirable).
Here I go, although a bit late, maybe you already solved your doubt 😉 I haven’t seen in any of the comments a way I know with vim, so, I add it:
And that should do the trick. Note that this will prompt to reload the file in vim, for what you have to press L
E45 readonly option is set add to override что делать
1. Download the installation package
Official websiteDownload, orBaidu Cloud LinkDownload:
2. Check and clean up whether there are any installation residues
If you are sure that the mysql service has not been installed, you don’t need it. If you are reinstalling or you are not sure, you can check it level by level.
If you have installed it with yum, use the command: yum remove mysql* uninstall
Then delete the old mysql files and folders residual or data:
Special attention: /etc/my.cnf file, /usr/bin, /usr/share related mysql files should also be deleted, in addition to the /etc/init.d/mysql configuration file during the installation process delete
Three, install the rpm package and solve possible dependencies
Install the rpm file downloaded in One, first install the server.prm file, and then install the client.rpm file
To learn to solve the net-tools dependency, you can refer to:Yum resolves dependencies,middle
Common YUM commands are used as follows:
1. List all updateable software list, command: yum check-update Software name
2. Install all update software, command: yum update software name
3. Only install the specified software, command: yum install Software name
4. List all installable software list, command: yum list
5. Use YUM to install and remove the software, command: yum remove Software name
simple to use: yum install net-tools and then y agrees, but there will be some minor problems afterwards. Only when you see Complete! is the installation of net-tools successful
file /usr/share/mysql/charsets/README from install of MySQL-server-5.7.4_m14-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.47-1.el7_2.x86_64
……
file /usr/share/mysql/czech/errmsg.sys from install of MySQL-server-5.7.4_m14-1.el6.x86_64 conflicts with file from package mariadb-libs-1:5.5.47-1.el7_2.x86_64
It is very simple, that is, the previous file is not deleted cleanly, recheck and delete it.
I used yum to install mariadb-libs-1:5.5.47-1.el7_2.x86_64 before, so I used the command yum remove mariadb-libs-1:5.5.47-1.el7_2.x86_64 to delete this package mariadb-libs-1:5.5.47-1.el7_2.x86_64
Preparing. ################################# [100%]
find: ‘/var/lib/mysql’: No such file or directory
You must change that password on your first connect,
no other statement but ‘SET PASSWORD’ will be accepted.
See the manual for the semantics of the ‘password expired’ flag.
Pay attention to the password change prompt above.
Then install the client:
Four, set password and simple use
Check whether the service is started, that is, whether port 3306 is starting: netstat-nat
Start the service: service mysql start
[[email protected] /]# service mysql start
Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
[[email protected] /]# service mysql restart
ERROR! MySQL server PID file could not be found!
Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
Enter the prompted folder, there is no pid file, and then vim localhost.localdomain.err There is no useful information to check the problem.
[[email protected] /]# service mysql start
Starting MySQL.. ERROR! The server quit without updating PID file (/var/lib/mysql/localhost.localdomain.pid).
USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
But still can’t start:The second kindUseless
[[email protected] mysql]# service mysql start
Starting MySQL SUCCESS!
Installation in the form of tar.gz.
1. Download the installation package
Two, create a mysql user
Three, install the database
key_buffer_size=8388608
read_buffer_size=131072
max_used_connections=0
max_threads=151
thread_count=0
connection_count=0
It is possible that mysqld could use up to
key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 68188 K bytes of memory
Hope that’s ok; if not, decrease some variables in the equation.
Thread pointer: 0x0
Attempting backtrace. You can use the following information to find out
where mysqld died. If you see no messages after this, something went
terribly wrong.
stack_bottom = 0 thread_stack 0x40000
./mysqld(my_print_stacktrace+0x35)[0xf45595]
./mysqld(handle_fatal_signal+0x4a4)[0x77fd34]
/lib64/libpthread.so.0(+0xf130)[0x7f7a8a606130]
/lib64/libc.so.6(gsignal+0x37)[0x7f7a892075d7]
/lib64/libc.so.6(abort+0x148)[0x7f7a89208cc8]
./mysqld[0x10dd465]
./mysqld(_ZN2ib5fatalD1Ev+0xb3)[0x10e2b33]
./mysqld(_Z21os_thread_create_funcPFPvS_ES_Pm+0x277)[0xff3d37]
./mysqld(_Z34innobase_start_or_create_for_mysqlv+0x1686)[0x1097196]
./mysqld[0xf7669d]
./mysqld(_Z24ha_initialize_handlertonP13st_plugin_int+0x51)[0x7caac1]
./mysqld[0xd35576]
./mysqld(_Z11plugin_initPiPPci+0x965)[0xd3a3c5]
./mysqld[0x77641b]
./mysqld(_Z11mysqld_mainiPPc+0x516)[0x779316]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x7f7a891f3af5]
./mysqld[0x76fdc9]
The manual page at http://dev.mysql.com/doc/mysql/en/crashing.html contains
information that should help you find out what is causing the crash.
Fourth, the configuration file
[[email protected] mysql-5.7.11]# cd support-files/
[[email protected] support-files]# cp my-default.cnf /etc/my.cnf
cp: overwrite ‘/etc/my.cnf’? yes
[[email protected] support-files]# cp mysql.server /etc/init.d/mysql
[[email protected] support-files]# vim /etc/init.d/mysql
#!/bin/sh
#!/bin/sh
# Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB
# This file is public domain and comes with NO WARRANTY of any kind
# MySQL daemon start/stop script.
# Usually this is put in /etc/init.d (at least on machines SYSV R4 based
# systems) and linked to /etc/rc3.d/S99mysql and /etc/rc0.d/K01mysql.
# When this is done the mysql server will be started when the machine is
# started and shut down when the systems goes down.
# Comments to support chkconfig on RedHat Linux
# chkconfig: 2345 64 36
# description: A very fast and reliable SQL database engine.
# Comments to support LSB init script conventions
### BEGIN INIT INFO
# Provides: mysql
# Required-Start: l o c a l f s
/.my.cnf or other MySQL configuration files.
# If you change base dir, you must also change datadir. These may get
# overwritten by settings in the MySQL configuration files.
# Default value, in seconds, afterwhich the script should timeout waiting
# for server start.
# Value here is overriden by value in my.cnf.
# 0 means don’t wait at all
# Negative numbers mean to wait indefinitely
service_startup_timeout=900
# Lock directory for RedHat / SuSE.
lockdir=’/var/lock/subsys’
lock_file_path=»$lockdir/mysql»
# The following variables are only set for letting mysql.server find things.
Five, configure environment variables
Six, add boot service
]$ service mysql start
Starting MySQL ERROR! Couldn’t find MySQL server (/home/mysql//bin/mysqld_safe)
(Sure enough, something went wrong)
Then modify to the end to appear:
According to the online solution: enter after ESC: wq!,(Reference link)
Error displayed after forced save
«/etc/rc.d/init.d/mysql»
«/etc/rc.d/init.d/mysql» E212: Can’t open file for writing
After Enter, continue to ESC: x display
Как открыть файл в vim в режиме только для чтения в Linux/Unix
Мне нужно открыть необходимые файлы в режиме чтения (только для чтения), чтобы избежать случайного редактирования таких файлов, как /etc/resolv.conf или большой файл конфигурации или файл программирования на производственном сервере. Как открыть файлы в режиме только для чтения в текстовом редакторе vim в Linux или Unix-подобной системе?
Вы можете запустить текстовый редактор vim или vi в режиме только для чтения. Вы будете защищены от написания файлов. Существуют различные способы достижения режима защиты от записи в vim.
Как открыть файл в режиме только для чтения:
Понимание вариантов
Самый простой синтаксис выглядит следующим образом:
Если вы попытаетесь что-либо написать, вы получите ошибку, которая выглядит следующим образом:
Опция -R устанавливает режим только для чтения. Будет установлен параметр «только для чтения». Вы все равно можете редактировать буфер, но вам будет запрещено случайно перезаписывать файл. Если вы хотите перезаписать файл, добавьте восклицательный знак в команду Ex, как в «: w!» Или «: x!».
Если вы внесли некоторые изменения и действительно хотите сохранить его, просто введите:
Опция -m принудительно изменяет файлы. Она сбрасывает опцию ‘write‘. Вы все равно можете изменить буфер, но запись файла вообще невозможна:
Опция -M заставляет опции «modifiable» и «write» отменяться, поэтому изменения не допускаются, и файлы не могут быть записаны.
Если вы попытаетесь вставить или изменить текст, вы получите сообщение об ошибке на экране: «E21: Cannot make changes, ‘modifiable’ is off»:
Примечание об открытии вкладки в режиме только для чтения в vim / vi
Если вы захотите открыть новую вкладку, синтаксис будет выглядеть следующим образом:
ИЛИ открыть в одной области экрана:
Например, отредактируйте /etc/nginx/nginx.conf в режиме только для чтения:
Теперь откройте файл с именем /etc/nginx/conf.d/cyberciti.biz.conf или /etc/nginx/conf.d/default.conf в режиме только для чтения на новой вкладке, для этого используйте:
Чтобы перейти к следующему типу вкладок:
Чтобы перейти к предыдущему типу вкладок:
Чтобы перечислить все вкладки, введите:
Примеры возможных выводов данных:
Анимированный рисунок 01: Откройте файл и вкладку vim в режиме демонстрации только для чтения
How to open the file in the read-only mode under vi or vim
Published: February 11, 2017 | Modified: June 2, 2020
Learn how to open the file in the read-only mode under vi or vim editor. Opening it as read-only prevents any accidental edits in the file and maintain file integrity.
One of the disadvantages is you are prone to accidentally alter file content and end up saving it in the file. This is a threat to file integrity and hence needs to be avoided. The option is to view files in vi editors carefully or open them in read-only mode!
Lets see different ways to view file in read only mode under vi :
1. Use of view command
One of the widely used ways to view files in vi editors. Simple open file with view command. It will open in vi editors and any attempt to save/alter data will result in failure, securing your file from accidental edits.
You can see above it shows readonly at the bottom and open file in vi editors. If you get into INSERT mode to edit any content of the file you will see below warning.
If you try to save edited content then you will see below warning
3. vi modifications not allowed mode
Unlike the above two options, this mode won’t let you edit files at all. It will show below error at the bottom when you enter INSERT mode.
So you won’t be able to type in anything even you try INSERT mode. If you try to save the file with :w then it will show you below error :
This makes it the most secure way to open files in the read-only mode under vi to avoid accidental content alteration!
Let us know which way you use most in your daily operations in comments. Happy viewing! 🙂