What is $? var in script below on condition of while loop
108681
What is the $? (dollar question mark) variable in shell scripting?
25478
What does ${1+"$@"} mean in a shell script, and how does it differ from "$@"?
114169
Why can't we define a variable inside a while loop?
83501
What is the JavaScript >>> operator used for?
9173
What are the PHP operators "?" and ":" called and what do they do?
27742
What does "${-#*i}" != "$-" mean?
101854
What is the difference between $@ and $* in shell scripts?
67917
what does $('') do?
2266
Why is my variable local in one 'while read' loop, but not in another seemingly similar loop?
30263
Why is while's condition outside the do while scope
11975
What does $@ mean in a shell script?
117923
How to use JavaScript variables in jQuery selectors?
100230
Reading a javascript script, why so many $ (dollar signs)?
58687
What is the difference between $(command) and `command` in shell programming?
155520
Why does $('#id') return true if id doesn't exist?
57007
What is the meaning of $? in a shell script?
47676
What does "var FOO = FOO || {}" (assign a variable or an empty object to that variable) mean in Javascript?