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In C, how should I read a text file and print all strings
...d.
If you want to read the file in chunks, but without dynamic memory allocation, you can do:
#define CHUNK 1024 /* read 1024 bytes at a time */
char buf[CHUNK];
FILE *file;
size_t nread;
file = fopen("test.txt", "r");
if (file) {
while ((nread = fread(buf, 1, sizeof buf, file)) > 0)
...
How do I grab an INI value within a shell script?
...here -A5 is the number of rows to read in the section. Replace source with cat to debug.
If you've got any parsing errors, ignore them by adding: 2>/dev/null
See also:
How to parse and convert ini file into bash array variables? at serverfault SE
Are there any tools for modifying INI style fi...
At runtime, find all classes in a Java application that extend a base class
...so many people roll their own by having a file in a well known classpath location (i.e. /META-INF/services/myplugin.properties) and then using ClassLoader.getResources() to enumerate all files with this name from all jars. This allows each jar to export its own providers and you can instantiate them...
How to change href of tag on button click through javascript
...Link").onclick = function() {
document.getElementById("abc").href="xyz.php";
return false;
};
</script>
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How to keep environment variables when using sudo
...
Here is the quote from the man page:
-E, --preserve-env
Indicates to the security policy that the user wishes to preserve their
existing environment variables. The security policy may return an error
if the user does not have permission to preserve the envir...
Ways to eliminate switch in code [closed]
...e "dog":
echo animal.bark();
break;
case "cat":
echo animal.meow();
break;
}
}
becomes this:
foreach (var animal in zoo) {
echo animal.speak();
}
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Find all storage devices attached to a Linux machine [closed]
.../mnt type ext3 (rw)
And /proc/partitions says:
root@ip-10-126-247-82:~# cat /proc/partitions
major minor #blocks name
202 1 10485760 xvda1
202 2 356485632 xvda2
202 3 917504 xvda3
Side Note
How fdisk -l works is something I would love to know myself.
...
ERROR 2006 (HY000): MySQL server has gone away
...ation/options, and I wasn't willing to go down a programmatic solution via PHP or other.
– Richard Sitze
Dec 16 '12 at 21:15
160
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How can I force clients to refresh JavaScript files?
...
This uses PHP tags and if one uses PHP, it is indeed a good idea.
– Jerther
Apr 19 '17 at 12:31
3
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int a[] = {1,2,}; Weird comma allowed. Any particular reason?
...r a = [1, 2,];, so do most other languages I know... ActionScript, Python, PHP.
– Sean Fujiwara
Aug 14 '11 at 3:43
14
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