If HOME is unset, the home directory of the user executing the shell is substituted instead. Otherwise, the tilde-prefix is replaced with the home directory associated with the specified login name.If the tilde-prefix is a '~+', the value of the shell variable PWD replaces the tilde-...
The back- slash preceding the ! is not removed. The special parameters * and @ have special meaning when in double quotes (see PARAMETERS below). Words of the form $'string' are treated specially. The word expands to string, with backslash-escaped characters replaced as specified by the ...
There are two forms: $(command) or `command` Bash performs the expansion by executing command and replacing the command substitution with the standard out put of the command, with any trailing newlines deleted. When the old-style backquote form of substitution is used, backslash retains its...
/ Root directory [forward slash]. The path to root directory location. └─> Filename path separator. \ Escape [backslash]. A quoting mechanism for single characters. It preserves the literal value of the next character that follows, with the exception of newline. └─> Arithmetic operator...
Sorry for the multiple posts, but I now realize that the only thing needed to accomplish this is to include a backslash before the $PWD. This ensures that the current working directory is determined each time the prompt is created; without the backslash it would be determined just o...
One forward-slash represents the shortest possible directory path. Because everything in the Linux directory tree starts at the root directory, you can use this command to move to the root directory quickly: cd / # Comment or Trim Strings ...
Type: string|function Default: [/\\] (forward slash and backslash)star options.star Customize the star character(s) to use for matching. It's not recommended that you modify this unless you have advanced knowledge of the compiler and matching rules. Type: string|function Default: [^/\\]...
sh obtains all characters from the tilde (~) to the first backslash \ (/ on UNIX) and uses this as a user name. sh looks for this name in the user database. If sh finds a matching name, it replaces ~name with the name of the user's home directory, as given in the matching ...
Regular expressions or regex or regexp are basically strings of character that define a search pattern, they can be used for performing ‘Search’ or ‘Search & Replace’ operations as well as can be used to validate a condition like a password policy etc. ...
If you were to run this script, you would NOT find line four and replace it with tomorrow will begin and will instead give you an error: ./test.sh: line 4: is: command not foundsed: first RE may not be empty In order for it to work, you need to “escape” the double quotes ...