Unix is a multitasking, multi-user computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs.

learn more… | top users | synonyms

8
votes
1answer
74 views

Split large file into smaller files

I recently suggested this method for emulating the Unix utility split in Python. Is there a more elegant way of doing it? EDIT: Assume that the file chunks are too large to be held in memory. Assume ...
5
votes
2answers
45 views

Small bash script to start and stop named services

I've been working on ubuntu since many years but not quite familiar with bash scripting. My development tools involve servers like nginx and apache, the mysql database and beanstalkd. Obviously, I ...
4
votes
3answers
92 views

Clean way to get size of directory

I'm working on a Unix machine where I can't use more than vanilla Perl, and I'm using Perl5.8. This script exits with a 1 if the current directory size is smaller than 1 GB (the character after ...
3
votes
1answer
100 views

Bash Music Player

I have finally finished creating my first real project. It's just a simple music player that can provides the user with the latest music from any site (as long as it contains MP3 files) he provides ...
2
votes
1answer
23 views

ksh script comments

Could you please review my script? ...
4
votes
1answer
306 views

How to implement 'cat' command using c?

A 'cat' command. The options are as follows: ...
2
votes
0answers
50 views

Synchronize 3 processes with fork() [closed]

I was given the following exercise in my university: Given 3 processes: d1 - print("I"), print("D") d2 - ...
1
vote
2answers
81 views

Remove NULL / empty fields using awk

just wanted to check with you could this be done better: ...
5
votes
1answer
114 views

Portability and “dark corner” gotchas in this “watchdog” program

The following program is intended to "watchdog" a child process, and all subprocesses the child spawns. The intended behavior is: A child process (as specified on the command line) is run in a ...
2
votes
1answer
207 views

List contents of a folder using a shell script and mail the folder

I want to list the contents of a folder and mail the list using a shell script. I Came up with the following script, please let me know if it is okay: ...
2
votes
1answer
88 views

Bash script to manage multiple Java Development Kits installations

I'm writing a bash script to manage multiple JDKs, the script is very simple, you have to choose a directory when you store all the jdk's, and the script maintain ...
-1
votes
1answer
47 views

bash file manipulation [closed]

I have files in a directory named so: 1welcome.avi 2introdution.avi I have a rhcsa.txt file that has what these files should be named as: rhcsa_1_welcome.avi rhcsa_2_introduction.avi both the ...
5
votes
2answers
76 views

Make a directory and change to it

A basic shell function to create a directory and change to it goes like this: mkcd () { mkdir "$1" && cd "$1"; } This works well in many cases but breaks ...
1
vote
1answer
479 views

How can I further optimize this Perl script for finding all unowned files and directories on Unix?

(Originally posted on Stack Overflow) Following my findings and suggestions in my other post How to exclude a list of full directory paths in find command on Solaris, I have decided to write a Perl ...