UNIX for Software Testers / QA Engineers

Learn to identify the Linux flavor and verify the Ubuntu release version using lsb_release -d, confirming the Ubuntu LTS stable release.

Explore how unix treats the file system, switch to a super user with sudo, perform privileged tasks as root, and return to a normal user when finished.

Create and organize files by using mkdir to make a directory, then list contents with ls and the long listing ls -l to inspect details.

Use the man command to view a command's description, syntax, and flags, and learn to explore hidden files, long listings, paging with space, and quitting with q.

List files in any directory without switching by using direct paths with the ls command, including hidden files with -a.

Create files with nano, save edits using Ctrl+X and Y, and verify content by using cat to display the file, illustrating basic Unix file creation for testers.

Master the vi editor as a Unix text editor by entering insert mode with i, exiting with escape, and saving with :wq. Compare its workflow to nano.

Copy files between directories in Unix using the cp command, verify results with ls, and distinguish copying from moving for backup and organization.

Demonstrate moving a file to another directory in unix, showing that moving is cut paste, and how to cd into the target directory and verify with ls.

Learn how to delete files and directories in Unix, using rm -r to remove all contents and the directory, and rmdir for empty directories.

Master grep and find to locate strings in files and to locate files in the filesystem, enabling testers to compare outputs across Unix systems during migration testing.

Learn to use grep, the global regular expression utility, to search for Unix content across files, including recursive searches with -r to find terms like test.

Learn to run grep from anywhere to locate user entries in the password file and perform recursive searches with -r for efficient, interview-ready Unix skills.

Learn to use the find command in the current directory (dot) or a specified path, printing matches like Unix and Unix file demo, and avoid root-level searches for test cases.

Explore file permissions and how to change them with chmod, using symbolic mode with u, g, o, a and read, write, execute, plus and minus to add or remove rights.

Explore how to view and modify file permissions in unix, using ls -l, and apply execute, read, and write permissions for user, group, and others with plus syntax.