query: shell script purpose of x in "x$VARIABLE"
positive_passages.docid: 19713
positive_passages.text: Why do shell script comparisons often use x$VAR = xyes?
negative_passages.docid: 106701
negative_passages.text: Bash: What does ">|" do?
negative_passages.docid: 138448
negative_passages.text: Input from within shell script
negative_passages.docid: 54322
negative_passages.text: What is the difference between the "...", '...', $'...', and $"..." quotes in the shell?
negative_passages.docid: 36359
negative_passages.text: What does $# mean in shell?
negative_passages.docid: 59672
negative_passages.text: What are the special dollar sign shell variables?
negative_passages.docid: 102224
negative_passages.text: Does variable=$(...) store the command or the result of the command in POSIX sh
negative_passages.docid: 102137
negative_passages.text: What's the purpose of adding a prefix on both sides of a shell variable comparison to a string literal?
negative_passages.docid: 96938
negative_passages.text: What's the difference between using > and >> in shell?
negative_passages.docid: 86659
negative_passages.text: Difference between shell variables which are exported and those which are not in bash
negative_passages.docid: 67294
negative_passages.text: Shell variables in sed script
negative_passages.docid: 135008
negative_passages.text: Using shell variables for command options
negative_passages.docid: 89488
negative_passages.text: What is the purpose of xargs -I command?
negative_passages.docid: 148295
negative_passages.text: Shell variable $_ not behaving as expected
negative_passages.docid: 138043
negative_passages.text: What are the specific naming conventions for variables in bash shell scripting language?
negative_passages.docid: 57007
negative_passages.text: What is the meaning of $? in a shell script?
negative_passages.docid: 13826
negative_passages.text: In Bash scripting, what's the meaning of " $! "?