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How to pipe list of files returned by find command to cat to view all the files
...\;
(Everything between find and -exec are the find predicates you were already using. {} will substitute the particular file you found into the command (cat {} in this case); the \; is to end the -exec command.)
send output of one process as command line arguments to another process
command2 `co...
How do I set $PATH such that `ssh user@host command` works?
...to ~/.profile will be left unseen.
Bash in non-interactive mode sometimes reads the file ~/.bashrc (which is also often source'd from the interactive scripts.) By "sometimes" I mean that it is distribution-dependent: quite oddly, there is a compile-time option for enabling this. Debian enables the ...
Nodejs Event Loop
...
I have been personally reading the source code of node.js & v8.
I went into a similar problem like you when I tried to understand node.js architecture in order to write native modules.
What I am posting here is my understanding of node.js and...
Token Authentication vs. Cookies
... bound to a single domain. A cookie created on the domain foo.com can't be read by the domain bar.com, while you can send tokens to any domain you like. This is especially useful for single page applications that are consuming multiple services that are requiring authorization - so I can have a web ...
PHP Session Fixation / Hijacking
...ssion Fixation and hijacking and how to prevent these problems. I've been reading the following two articles on Chris Shiflett's website:
...
What is the best way to count “find” results?
...something else with the file names in addition to counting them, you could read from the find output.
n=0
while read -r -d ''; do
((n++)) # count
# maybe perform another act on file
done < <(find <expr> -print0)
echo $n
It is just a modification of a solution found in BashGuid...
How to see log files in MySQL?
I've read that Mysql server creates a log file where it keeps a record of all activities - like when and what queries execute.
...
How to synchronize a static variable among threads running different instances of a class in Java?
...eyword before a method brings synchronization to that object. That is, 2 threads running the same instance of the object will be synchronized.
...
Can not deserialize instance of java.util.ArrayList out of START_OBJECT token
...en take control of the deserialization process:
Collection<COrder> readValues = new ObjectMapper().readValue(
jsonAsString, new TypeReference<Collection<COrder>>() { }
);
You would loose a bit of the convenience of not having to do that yourself, but you would easily sort o...
Writing outputs to log file and console
...
Yes, you want to use tee:
tee - read from standard input and write to standard output and files
Just pipe your command to tee and pass the file as an argument, like so:
exec 1 | tee ${LOG_FILE}
exec 2 | tee ${LOG_FILE}
This both prints the output to th...