All those functions that are being applied to All keys in this dictionary appear as a name, and the specified values for them# will be the number of times that specific name will appear.order = # sys.stdin is an object used for files. #!/usr/bin/env pythonimport sys#importing system modules to work with directory filesif _name_ = “_main_”:# Starting with an empty dictionary here. But is Bash Shell scripting totally replaceable? Let us take a look. However, there is Python here for the rescue and the most suitable replacement for the same. Advanced features such as HTML parsing are not easily available for the bash.I mean that bash scripts are extremely hard to insert in C or other Java codes. Shell scripts tend to get extremely complicated as they become large.Shell scripts are actually very good for running batch scripts and doing repeated jobs, but at the same time, they do come with some disadvantages:. Sometimes, you want things to be simpler, as simple as a Graphic user interface. Thus, shell scripts are good, but they cannot be used for doing new jobs all the time. So, though the above is just one line of code, it can get complicated when more conditions are inserted. Finally, we print the number of lines using ‘wc -l’ to count and print it on the terminal screen. After entering the file’s strings, the file is read, sorted out in order, and transferred to the uniq syntax to remove any existing duplicates, which in our case is ‘hello’.Secondly, echo -e is used to print multiple words inside of the file.txt file and ‘slash n’ or ‘\n’ is used to enter a newline or go to the next line.First, a file is created with the name file with extension text to inform it’s a text file.So all of these chained commands do the following. The ‘wc’ is used for counting lines, and -l is just a flag to print them. Sort is used to sort everything in order, and ‘uniq’ is used to remove duplicates from the sorting. ‘cat’ syntax is used to read a file’s contents. The double right-sided arrows ‘>’ are used to insert the output to any file or program. The ‘touch’ syntax is used to create any file, and the echo syntax is used to print any statement. It is used to transfer the output of one file to other. So, as you can see, a lot of shell scripting is going on here, but what is exactly happening? First, the ‘ | ‘ is known as the pipe. For example, to say, take this piece of code:- $ touch file.txt | echo -e ‘hello\n New\n World\n hello\n Hello’ > file.txt | cat file.txt | sort | uniq | wc -l You can almost do most of your jobs here in just one line of code. Let’s take a deeper look into both of them and see where it takes us. Or is it that we can actually combine both of them together and make something new and better out of the two. Today we are at war here on which one is more suitable for smaller and larger applications. And this is where scripting languages like Shell programming and Python languages excel. I am not cursing C or Java here it is just that they are not suitable for everyday use. #Python text editor and shell in one softwareWeb development, programming languages, Software testing
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |