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How to compile and run C/C++ in a Unix console/Mac terminal?
How can I compile/run C or C++ in Unix console or a Mac terminal?
16 Answers
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^M at the end of every line in vim
...sy way to strip out the DOS line endings is to use the ff option:
:set ff=unix
:wq
Now your file is back to the good-old-Unix-way.
If you want to add the DOS line-endings (to keep a printer happy, or transfer files with Windows friends who don't have nice tools) you can go the opposite direction...
Add up a column of numbers at the Unix shell
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... | paste -sd+ - | bc
is the shortest one I've found (from the UNIX Command Line blog).
Edit: added the - argument for portability, thanks @Dogbert and @Owen.
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How to convert the ^M linebreak to 'normal' linebreak in a file opened in vim?
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:e ++ff=dos followed by :set ff=unix will convert the endings to a sane format.
– Mateen Ulhaq
Mar 2 '18 at 2:22
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Why number 9 in kill -9 command in unix? [closed]
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See the wikipedia article on Unix signals for the list of other signals. SIGKILL just happened to get the number 9.
You can as well use the mnemonics, as the numbers:
kill -SIGKILL pid
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psql: FATAL: Peer authentication failed for user “dev”
...atabase user name
-h is the hostname/IP of the local server, thus avoiding Unix domain sockets
-d is the database name to connect to
This is then evaluated as a "network" connection by Postgresql rather than a Unix domain socket connection, thus not evaluated as a "local" connect as you might see ...
When should I use File.separator and when File.pathSeparator?
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You use separator when you are building a file path. So in unix the separator is /. So if you wanted to build the unix path /var/temp you would do it like this:
String path = File.separator + "var"+ File.separator + "temp"
You use the pathSeparator when you are dealing with a lis...
Listing only directories in UNIX
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With which flavour of Unix do you get tree?
– Johnsyweb
Sep 8 '10 at 12:12
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IPC performance: Named Pipe vs Socket
...863.296 us
Standard deviation: 44.905 us
Message rate: 22483 msg/s
Unix domain sockets benchmark:
Message size: 128
Message count: 1000000
Total duration: 24579.846 ms
Average duration: 24.531 us
Minimum duration: 2.560 us
Maximum duration: 15932.928 us
Standard deviati...
How to run Unix shell script from Java code?
It is quite simple to run a Unix command from Java.
17 Answers
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