Bash Scripting - String Operations
Given
var="folder/subfolder/file.txt", what is the output of echo ${var#*/}?Given var="folder/subfolder/file.txt", what is the output of echo ${var#*/}?
medium📝 Command Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Understand the pattern
The pattern*/*/matches the shortest prefix ending with a slash.Step 2: Remove shortest prefix matching
From "folder/subfolder/file.txt", the shortest prefix matching*/*/is "folder/". Removing it leaves "subfolder/file.txt".Final Answer:
subfolder/file.txt -> Option BQuick Check:
Remove shortest prefix ending with / = subfolder/file.txt [OK]
Quick Trick: Pattern */ removes up to first slash [OK]
Common Mistakes:
MISTAKES- Removing longest prefix with ## instead of #
- Expecting only filename instead of subfolder/file.txt
- Confusing prefix removal with suffix removal
Master "String Operations" in Bash Scripting
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