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How to invoke a Linux shell command from Java
...trying to execute some Linux commands from Java using redirection (>&) and pipes (|). How can Java invoke csh or bash commands?
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What is the difference between 'java', 'javaw', and 'javaws'?
...a, the JRE may write starting errors (class not found) on the error output pipe. In this respect, it is essential to know about errors. I suggest to use the console redirection in any case if javaw is invoked.
In opposite if you use
start java .... 1>log.txt 2>err.txt
With the Windows cons...
Getting the count of unique values in a column in bash
...h prints both the words and their frequency.
Possible changes:
You can pipe through sort -nr (and reverse word and freq[word]) to see the result in descending order.
If you want a specific column, you can omit the for loop and simply write freq[3]++ - replace 3 with the column number.
Here goe...
How to display gpg key details without importing it?
...k at an OpenPGP key file, you can simply pass the filename as parameter or pipe in the key data through STDIN. If no command is passed, GnuPG tries to guess what you want to do -- and for key data, this is printing a summary on the key:
$ gpg a4ff2279.asc
gpg: WARNING: no command supplied. Trying ...
is node.js' console.log asynchronous?
...oid lost messages in case of premature exit) and asynchronous when it's a pipe (to avoid blocking for long periods of time).
That is, in the following example, stdout is non-blocking while stderr is blocking:
$ node script.js 2> error.log | tee info.log
In daily use, the blocking/non...
Exit a Script On Error
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This is a common practice so you can pipe your script output to stdout so another process can get it without having the info messages in the middle.
– supercobra
Jun 12 '14 at 15:35
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Coloring white space in git-diff's output
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This last idea of less -R just made it easier for me to pipe ls --color through less.
– Menachem
Feb 4 '16 at 0:37
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When should I use Inline vs. External Javascript?
...c portion is basically a string constant which you shove down the response pipe as fast as you possibly can. This can be a little tricky if you use a lot of middleware that sets cookies (these need to be set before sending http content), but in principle it's just flushing the response buffer, hopef...
MySQL: Transactions vs Locking Tables
...ur favor".
Now, let's say you use locks. Your bill payment ($20) hits the pipe first, so it wins and locks your account record. Now you've got exclusive use, and can deduct the $20 from the balance, and write the new balance back in peace... and your account ends up with $80 as is expected. But... ...
How do I find out which process is locking a file using .NET?
...or by using an interprocess communication mechanism such as queue or named pipe) and have a second process call the Restart Manager API.
Granting other-than-minimal permissions to the IIS user is a security risk.
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