Furthermore, if you use ~ followed by a username, it expands to that user's home directory. This is a handy shortcut when you need to access another user's files. For example, cat ~opsnot/.ssh/authorized_keys will expand to cat /home/opsnot/.ssh/authorized_keys . This expansion makes navigating the filesystem feel much more fluid and concise.
Plate Numbering: Plates are usually labeled with a letter (indicating the row or "strake") and a number (indicating the position from aft to forward). For example, "B-12" might refer to the 12th plate in the "B" strake.
The plan uses a systematic approach to map out the ship's complex 3D surface into a manageable 2D format:
Tilde expansion is next. It deals specifically with the ~ character. When the shell sees a ~ by itself, it expands it to the value of the HOME environment variable, making cd ~ a quick way to return to your home directory. shell expansion plan pdf
Title: Shell Expansion Plan — Executive Summary
Note: All legitimate versions of these strategy and expansion documents can be safely downloaded directly from the official portal.
: Brace expansions can be nested and can generate ranges of numbers and letters. A range like 1..5 expands to 1 2 3 4 5 , and since Bash 4.0, you can even specify a step value, as in 0..20..2 for increments of two. An important detail is that brace expansion requires at least two elements. echo X will literally output X , while echo X,Y will produce X Y . Furthermore, if you use ~ followed by a
Structural Integrity and ComplianceClassification societies (such as ABS, DNV, or Lloyd’s Register) require shell expansion plans to verify that the vessel meets structural safety standards. The plan highlights the "staggering" of vertical butts, ensuring that weld seams do not align in a way that creates structural weak points.
A is a critical engineering document used during the construction or modification of cylindrical storage tanks, pressure vessels, and silos. When a PDF titled "Shell Expansion Plan" is circulated, it typically details the geometric calculations required to fabricate the tank's body (the shell) from flat steel plates.
While popular in marine engineering, shell expansion plans are also vital for vertical cylindrical storage tanks designed under the standard. This expansion makes navigating the filesystem feel much
This expands to cp /etc/nginx/nginx.conf /etc/nginx/nginx.conf.bak , effectively creating a backup in a single, elegant command.
Page 1. SIMPLIFIED. SHELL EXPANSION. NSMV PHASE 3. DRWN: MDS. CHKD: PROJECT FILE: ABS APPROVAL: - DATE: APPD: FEB 15, 2017. SCALE: Maritime Administration (.gov) Shell Expansion Plan Overview | PDF - Scribd
: Longitudinal strips of plating. They are identified by letters (A, B, C...) starting from the keel (bottom) up to the sheer strake (top edge).