query: What "$$" outputs in command-line?
positive_passages.docid: 23092
positive_passages.text: What does "$$" mean in the shell?
negative_passages.docid: 8811
negative_passages.text: The issue of * in Command line argument
negative_passages.docid: 54313
negative_passages.text: What is $() in a command?
negative_passages.docid: 25511
negative_passages.text: I get weird > symbols in my output — what does it mean?
negative_passages.docid: 105006
negative_passages.text: What is wrong with “echo $(stuff)” or “echo `stuff`”?
negative_passages.docid: 56914
negative_passages.text: Does %* in batch file mean all command line arguments?
negative_passages.docid: 38402
negative_passages.text: What is the meaning of the ${0##...} syntax with variable, braces and hash character in bash?
negative_passages.docid: 64037
negative_passages.text: Difference between ' and " on command line (bash)?
negative_passages.docid: 15609
negative_passages.text: What does this cryptic Bash command mean?
negative_passages.docid: 101854
negative_passages.text: What is the difference between $@ and $* in shell scripts?
negative_passages.docid: 83409
negative_passages.text: Difference between $ and # in Linux environment
negative_passages.docid: 2583
negative_passages.text: Quoting within $(command substitution) in Bash
negative_passages.docid: 45816
negative_passages.text: What do $< and $@ represent in a Makefile?
negative_passages.docid: 108681
negative_passages.text: What is the $? (dollar question mark) variable in shell scripting?
negative_passages.docid: 76281
negative_passages.text: What does $(command) & do?
negative_passages.docid: 42711
negative_passages.text: What does $$ mean in the shell?
negative_passages.docid: 136243
negative_passages.text: Accessing bash command line args $@ vs $*