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Postgresql: password authentication failed for user “postgres”

...s. If you do not have a password for the User postgres ubuntu do: $ sudo passwd postgres share | improve this answer | follow | ...
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What does the number in parentheses shown after Unix command names in manpages mean?

...es (usually found in /dev) 5 File formats and conventions eg /etc/passwd 6 Games 7 Miscellaneous (including macro packages and conven‐ tions), e.g. man(7), groff(7) 8 System administration commands (usually only for root) 9 Kernel routin...
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Catching an exception while using a Python 'with' statement

...nally: f.close() Used as follows: with opened_w_error("/etc/passwd", "a") as (f, err): if err: print "IOError:", err else: f.write("guido::0:0::/:/bin/sh\n") share | ...
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PostgreSQL: How to change PostgreSQL user password?

... To change the password on the postgres user in Linux: sudo passwd postgres – Punnerud Aug 28 '19 at 6:31  |  show 3 more comme...
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How to search file text for a pattern and replace it with a given value

...ile. This is catastrophic if you're doing something like writing out /etc/passwd files as part of system configuration management. Note that in-place file editing like in the accepted answer will always truncate the file and write out the new file sequentially. There will always be a race conditio...
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How to make a HTTP request using Ruby on Rails?

... @yagooar which is great, prevents malicious redirects like file:///etc/passwd – gertas Nov 17 '15 at 15:58 1 ...
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What does $$ mean in the shell?

... as root and I create /tmp/yourprogname13395 as a symlink pointing to /etc/passwd -- and you write into it. This is a bad thing to be doing in a shell script. If you're going to use a temporary file for something, you ought to be using a better language which will at least let you add the "exclusiv...
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可重入函数、不可重入函数及线程安全 - C/C++ - 清泛网 - 专注C/C++及内核技术

... <stdio.h> #include <pwd.h> static void func(int signo) { struct passwd *rootptr; if( ( rootptr = getpwnam( "root" ) ) == NULL ) { err_sys( "getpwnam error" ); } signal(SIGALRM,func); alarm(1); } int main(int argc, char** argv) { signal(SIGALRM,f...
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node.js remove file

...o check files can be deleted or not, Use fs.access instead fs.access('/etc/passwd', fs.constants.R_OK | fs.constants.W_OK, (err) =&gt; { console.log(err ? 'no access!' : 'can read/write'); }); share | ...
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if arguments is equal to this string, define a variable like this string

... r) SERVER=$OPTARG ;; p) PASSWD=$OPTARG ;; v) VERBOSE=1 ;; ?) usage exit ;; esac done if [[ -z $TEST ]] || [[ -z $SERVER ]] || [[ -z $PASSWD ]] then...