labs:bash
Differences
This shows you the differences between two versions of the page.
| Next revision | Previous revision | ||
|
labs:bash [2016/03/03 17:58] pbrandes created |
labs:bash [2020/08/31 21:03] (current) |
||
|---|---|---|---|
| Line 5: | Line 5: | ||
| You can use [[http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-3.html|redirects]] to write the output of a program into a file. | You can use [[http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-3.html|redirects]] to write the output of a program into a file. | ||
| - | We provide you with a script for each exercise that checks your results. | + | We provide you with scripts for the first two exercises (exercise1.sh/exercise2.sh) that check your results. |
| ===== Exercise 1 ===== | ===== Exercise 1 ===== | ||
| - | As a first task, please checkout the necessary files from your git repository. You can find it under ''10.0.0.1:/opt/git/ti2fp''. The username is ''git''; the password is ''ti2lab''. To avoid conflicts with your fellow students, please create a folder with the name of your nethz account. Copy the files into this directory. A short (and simple) introduction can be found [[http://rogerdudler.github.io/git-guide/|here]]. We urge you to commit your changes after you have successfully solved an exercise. | + | As a first task, please checkout the necessary files from your git repository (you will have to install git first). You can find it under ''10.0.0.1:/opt/git/ti2fp''. The username is ''git''; the password is ''ti2lab''. To avoid conflicts with your fellow students, please create a folder with the name of your nethz account and copy the files into this folder. You can now create a new repository in this folder. This will allow you to undo any mistakes you make. A short (and simple) introduction can be found [[http://rogerdudler.github.io/git-guide/|here]]. We urge you to commit your changes after you have successfully solved an exercise. |
| Line 17: | Line 17: | ||
| - Unfortunately, your colleague, who created these files, did not follow the standard you agreed upon. Instead of a '';'' he used a ''#'' to separate the columns. Fix his mistake in ''allTheData.csv''. | - Unfortunately, your colleague, who created these files, did not follow the standard you agreed upon. Instead of a '';'' he used a ''#'' to separate the columns. Fix his mistake in ''allTheData.csv''. | ||
| - Count the number of lines in ''allTheData.csv'' write it into ''numberOfLines.txt''. | - Count the number of lines in ''allTheData.csv'' write it into ''numberOfLines.txt''. | ||
| - | - Go to the folder ''csv-Files''. In this folder there are dozens of csv files (in subfolders). Write the name of every ''*.csv'' file into ''csvFilesList.txt''. | + | - Go to the folder ''csv-Files''. In this folder there are dozens of csv files (in subfolders). Write the name of every ''*.csv'' file (including the path starting from the folder ''csv-Files'') into ''csvFilesList.txt''. |
| - Write the content of all these files into ''allCSVFilesContent.txt''. | - Write the content of all these files into ''allCSVFilesContent.txt''. | ||
| - Go to the folder ''src/core''. Print every line that contains the string ''author'' or ''Author''. | - Go to the folder ''src/core''. Print every line that contains the string ''author'' or ''Author''. | ||
| - Append the string ''%%//%% Author: ETH Zurich'' to every ''*.java'' file in this directory. | - Append the string ''%%//%% Author: ETH Zurich'' to every ''*.java'' file in this directory. | ||
| - | - Print every **file** that contains the string ''%%//%% Author: University of Zurich''. | + | - Print every **filename** that contains the string ''%%//%% Author: University of Zurich''. |
| - Delete those files. | - Delete those files. | ||
| - Go to the folder ''src/utils''. Print every file in this folder that does not contain ''DO NOT DELETE''. | - Go to the folder ''src/utils''. Print every file in this folder that does not contain ''DO NOT DELETE''. | ||
| Line 38: | Line 38: | ||
| - Write every line that contains ''import '' (note the space), but not ''bitcoinj'' in the folder src/core in a file called ''all_the_imports.txt''. | - Write every line that contains ''import '' (note the space), but not ''bitcoinj'' in the folder src/core in a file called ''all_the_imports.txt''. | ||
| - Count the total number of lines that contain "import" in every java file in src/core and write it into ''importLine.txt'' | - Count the total number of lines that contain "import" in every java file in src/core and write it into ''importLine.txt'' | ||
| - | - You know now how many lines there are. But you (should have) noticed that quite a few lines appear more than once. Which line appears the most? Write this line (without spaces) into ''mostImported.txt''. | + | - You know now how many lines there are. But you (should have) noticed that quite a few lines appear more than once. Which line appears the most? Write this line (without spaces in the beginning) into ''mostImported.txt''. |
| - The file ''allSrc.txt'' (in the folder src) contains a list of files. Write every line of these files that contain the word ''static'' into the file ''static.txt''. | - The file ''allSrc.txt'' (in the folder src) contains a list of files. Write every line of these files that contain the word ''static'' into the file ''static.txt''. | ||
| Line 50: | Line 50: | ||
| - Update your script such that it starts ''looper'' if it is not running. | - Update your script such that it starts ''looper'' if it is not running. | ||
| - Update your script such that it continuously monitors ''looper''. | - Update your script such that it continuously monitors ''looper''. | ||
| - | - Update your script such that it accepts the names of several programs as parameter. | + | - Update your script such that it accepts the names of several programs as parameter, i.e., ''./yourScript.sh looper backGround'' should work. |
labs/bash.1457024290.txt.gz ยท Last modified: 2020/08/31 21:03 (external edit)
Page Tools
