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How do I use Ruby for shell scripting?
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13 Answers
13
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How do you determine the size of a file in C?
... %s: %s\n",
filename, strerror(errno));
return -1;
}
On 32-bit systems you should compile this with the option -D_FILE_OFFSET_BITS=64, otherwise off_t will only hold values up to 2 GB. See the "Using LFS" section of Large File Support in Linux for details.
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How to check whether a string is Base64 encoded or not
... if a string is base64 encoded or not:
^([A-Za-z0-9+/]{4})*([A-Za-z0-9+/]{3}=|[A-Za-z0-9+/]{2}==)?$
In base64 encoding, the character set is [A-Z, a-z, 0-9, and + /]. If the rest length is less than 4, the string is padded with '=' characters.
^([A-Za-z0-9+/]{4})* means the string starts with 0 ...
Cron job every three days
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Run it every three days...
0 0 */3 * *
How about that?
If you want it to run on specific days of the month, like the 1st, 4th, 7th, etc... then you can just have a conditional in your script that checks for the current day of the month.
if (((date('j') -...
Convert string to integer type in Go?
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313
For example,
package main
import (
"flag"
"fmt"
"os"
"strconv"
)
func main(...
Close iOS Keyboard by touching anywhere using Swift
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1328
override func viewDidLoad() {
super.viewDidLoad()
//Looks for single or multiple taps...
Capture Image from Camera and Display in Activity
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edited Oct 3 '19 at 20:52
emilekm
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answered May 13 '11 at 12:23
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iOS start Background Thread
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Scott ForbesScott Forbes
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Is there a RegExp.escape function in Javascript?
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edited May 13 at 13:20
fregante
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How can I specify working directory for popen
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answered Nov 6 '09 at 3:10
Mark RushakoffMark Rushakoff
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