query: Bash when to use $@, "$@", and ${1+"$@"}
positive_passages.docid: 25478
positive_passages.text: What does ${1+"$@"} mean in a shell script, and how does it differ from "$@"?
negative_passages.docid: 65475
negative_passages.text: How to loop through arguments in Bash ($1 $2 $3 and so forth)?
negative_passages.docid: 42134
negative_passages.text: Whats the difference between "${foo.bar}" and "#{foo.bar}"?
negative_passages.docid: 50136
negative_passages.text: Using "${a:-b}" for variable assignment in scripts
negative_passages.docid: 38430
negative_passages.text: In PHP, what does the ${$ } syntax do?
negative_passages.docid: 114539
negative_passages.text: ${1:+"$@"} in /bin/sh
negative_passages.docid: 77109
negative_passages.text: Usage of :- (colon dash) in bash
negative_passages.docid: 111925
negative_passages.text: What's the difference between !, %, and @ in replacement tokens?
negative_passages.docid: 102882
negative_passages.text: In bash, how do I escape an exclamation mark?
negative_passages.docid: 57007
negative_passages.text: What is the meaning of $? in a shell script?
negative_passages.docid: 11423
negative_passages.text: Understand the meaning of `$_`
negative_passages.docid: 138043
negative_passages.text: What are the specific naming conventions for variables in bash shell scripting language?
negative_passages.docid: 45662
negative_passages.text: What is `$?` ? Is it a variable?
negative_passages.docid: 136243
negative_passages.text: Accessing bash command line args $@ vs $*
negative_passages.docid: 69145
negative_passages.text: Why do you need ./ (dot-slash) before executable or script name to run it in bash?
negative_passages.docid: 4050
negative_passages.text: Clarification on the use of @{} with table headings
negative_passages.docid: 112667
negative_passages.text: Bash variable substitution of variable followed by underscore