Louis I.

09/13/20

Decimal value..

What is the decimal value of this 64-bit two’s complement number? 11111111 11111111 11111111 11111111 11111111 11111111 11111111 111110002Just want to see the methodology thanks!

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Answers •2

Linux

08/08/20

What is the relationship between man pages and info pages?

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Answers •1

Computer Science

05/20/20

question about C++

I have the following class declaration (6 points):class A{public:A();virtual void fun();~A();}; a. Is it a good practice?b. Why?

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Answers •1

Computer General Computer Networking (computer)

04/15/20

Write the SQL queries

HAPPY INSURANCE Database... more

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Answers •1

R

09/28/19

Find file name from full file path?

Is there a way to extract the file name from the file full path (part of a file path) without the hassle of manipulating string?The equivalent in Java would be: File f = new File... more

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Answers •1

Visual Basic Basic Grep

07/27/19

grep regex to ignore comment at end of line?

I'm trying to grep through a lot of old PowerBASIC source files in search of a variable, but I'm having trouble getting `grep` to avoid matching references to the variable in the end-of-line... more

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Answers •1

Perl

07/19/19

Basically I want to know what is Perl and what are its basic requirements to learn it?

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Answers •1

Computer Programming Computer Science Computer Engineering

07/08/19

How can I use grep to show just filenames on Linux?

How can I use `grep` to show just file-names (no in-line matches) on Linux? I am usually using something like: find . -iname "*php" -exec grep -H myString {} \\; How can I just get the... more

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Answers •2

Linux Process Signals

06/30/19

What killed my process and why?

My application runs as a background process on Linux. It is currently started at the command line in a Terminal window. Recently a user was executing the application for a while and it died... more

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Answers •1

Linux Web File Permissions

06/28/19

Chmod 777 to a folder and all contents?

I have a web directory `/www` and a folder in that directory called `store`. Within `store` are several files and folders. I want to give the folder `store` and all files and folders within the... more

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Answers •1

Python Path General Computerwindows

06/22/19

How do I add Python to the Windows PATH?

I want to be able to run Python commands from the Windows CMD. However, if I don't specify Python's full path for each command, I get an error saying "*Python is not recognized as an internal or... more

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Answers •2

Linux Time Filesystems

06/21/19

How to recursively find and list the latest modified files in a directory with subdirectories and times?

- Operating system: Linux - Filesystem type: ext3 - Preferred solution: bash (script/oneliner), ruby, python I have several directories with several subdirectories and files in them. I need to... more

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Answers •1

Python Http Urllib

06/20/19

How do I download a file over HTTP using Python?

I have a small utility that I use to download a MP3 from a website on a schedule and then builds/updates a podcast XML file which I've obviously added to iTunes.The text processing that... more

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Answers •1

C

06/15/19

When is assembly faster than C?

One of the stated reasons for knowing assembler is that, on occasion, it can be employed to write code that will be more performant than writing that code in a higher-level language, C in... more

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Answers •1

Python String List

06/14/19

Python join: why is it string.join(list) instead of list.join(string)?

This has always confused me. It seems like this would be nicer: my_list = ["Hello", "world"] print my_list.join("-") # Produce: "Hello-world"Than this: my_list = ["Hello", "world"] ... more

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Answers •1

Linux

06/12/19

Recursively counting files in a Linux directory?

How can I recursively count files in a Linux directory? I found this: find DIR_NAME -type f ¦ wc -l But when I run this it returns the following error. > find: paths must precede... more

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Answers •1

Linux Bash Cp

06/12/19

How to have the cp command create any necessary folders for copying a file to a destination?

When copying a file using `cp` to a folder that may or may not exist, how do I get `cp` to create the folder if necessary? Here is what I have tried:  [root@file... more

Follows • 2

Answers •1

Linux Bash

06/05/19

Bash ignoring error for a particular command?

I am using following options set -o pipefail set -e In bash script to stop execution on error. I have 100 of script executing and I don't want to check return code of the script. But for a... more

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Answers •1

Linux Shell Tar

06/04/19

Shell command to tar directory excluding certain files/folders?

Is there a simple shell command/script that supports excluding certain files/folders from being archived? I have a directory that need to be archived with a sub directory that has a number of very... more

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Answers •1

Computer Programming Computer Science Computer Engineering

06/01/19

Is Azure more secure/trusted than AWS?

Follows • 1

Answers •1

C++

05/31/19

What's the purpose of using braces (i.e. {}) for a single-line if or loop?

I'm reading some lecture notes of my C++ lecturer and he wrote the following: > 1. Use Indentation // OK > 2. Never rely on operator precedence - Always use parentheses // OK > 3.... more

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Answers •1

Linux Find Shell

05/28/19

How to exclude a directory in find . command?

I'm trying to run a `find` command for all JavaScript files, but how do I exclude a specific directory? Here is the `find` code we're using. for file in $(find . -name '*.js') do java -jar... more

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Answers •2

Python Integer String Formatting

05/28/19

Display number with leading zeros?

Given: a = 1 b = 10 c = 100How do I display a leading zero for all numbers with less than two digits?That is, 01 10 100

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Answers •1

Unix Bash Shell

05/27/19

How to represent multiple conditions in a shell if statement?

I want to represent multiple conditions like this: if [ ( $g -eq 1 -a "$c" = "123" ) -o ( $g -eq 2 -a "$c" = "456" ) ] then echo abc; else echo efg; fi but when I execute the script,... more

Follows • 1

Answers •1

Decimal value..

What is the relationship between man pages and info pages?

question about C++

Write the SQL queries

Find file name from full file path?

grep regex to ignore comment at end of line?

Basically I want to know what is Perl and what are its basic requirements to learn it?

What system engineers do?

How can I use grep to show just filenames on Linux?

What killed my process and why?

Chmod 777 to a folder and all contents?

How do I add Python to the Windows PATH?

How to recursively find and list the latest modified files in a directory with subdirectories and times?

How do I download a file over HTTP using Python?

When is assembly faster than C?

Python join: why is it string.join(list) instead of list.join(string)?

Recursively counting files in a Linux directory?

How to have the cp command create any necessary folders for copying a file to a destination?

Bash ignoring error for a particular command?

Shell command to tar directory excluding certain files/folders?

Is Azure more secure/trusted than AWS?

What's the purpose of using braces (i.e. {}) for a single-line if or loop?

How to exclude a directory in find . command?

Display number with leading zeros?

How to represent multiple conditions in a shell if statement?

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