Bash Scripting - File Operations in Scripts
Which command safely creates a temporary file and stores its path in a variable named
tempfile in bash?Which command safely creates a temporary file and stores its path in a variable named tempfile in bash?
easy🧠 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Correct command usage
To create a temporary file and assign its path to a variable, use command substitution:tempfile=$(mktemp).Step 2: Analyze other options
tempfile=mktemp assigns the string 'mktemp' instead of executing the command. tempfile=$(tempfile) calls a non-existent command 'tempfile'. tempfile=mktemp -d tries to create a directory but assigns it incorrectly.Final Answer:
tempfile=$(mktemp) -> Option BQuick Check:
Is command substitution used? Yes. [OK]
Quick Trick: Use $(mktemp) to assign temp file path [OK]
Common Mistakes:
MISTAKES- Assigning command name as string instead of executing
- Using wrong command substitution syntax
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