Question
`Short-sight' in human eye can be corrected by using
proper –Solution
Scintillation or twinkling is generic terms for variations in apparent brightness or position of a distant luminous object viewed through a medium. If the object lies outside the Earth’s atmosphere, as in the case of stars and planets, the phenomenon is termed astronomical scintillation; within the atmosphere, the phenomenon is termed terrestrial scintillation.
Which symbol is used in shell scripting to reference a positional parameter, e.g., the first argument passed to a script?
Which command is used to check the current working directory in Linux?
Which command is used to change file permissions in Linux?
Which command is used to find the number of lines, words, and characters in a file?
Which command is used to display the current working directory in a Unix-like operating system?
Which operator enables process substitution in bash (e.g., diff <(cmd1) <(cmd2))?
Which character is used to denote a single-line comment in a shell script?
In shell scripting, which symbol is used to redirect the standard output to a file, overwriting its contents?
Which of the following is the syntax for an `if` statement checking if a variable `NUM` is numerically equal to 5?
Which operator enables process substitution?
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