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2m
comment Understand the meaning of `$_`
How clear is clear to you? The current only reply addresses my questions to the point. Also I refrain from writing bloating stuffs which doesn't increase the clarify of my questions.
13m
comment Understand the meaning of `$_`
Do you believe the Bash Manual is clearly and well written, although it is the most authoritative reference and supposed to be clearly and well written?
16m
revised Differences between declared, defined, and set
added 115 characters in body
19m
comment Understand the meaning of `$_`
What kind of efforts do you expect? Does searching in Bash Manual multiple times and reading several related parts count? Does still being puzzled after multiple searches count as honestly not understand? Can a user who is not new ask fundamental questions?
26m
asked Differences between declared, defined, and set
3h
comment Understand the meaning of `$_`
Thanks. (1) can you explain the third case with examples? (2) When I open a new gnome terminal tab, the output of echo $_ is EDITOR, and why is it? Which case does it follow? (3) Can you given an example of how to check mails, and of using $_ in this case?
6h
asked What is the meaning of $0 in the Bash shell
6h
asked Understand the meaning of `$_`
7h
awarded  Notable Question
8h
revised Are the null string and “” the same string?
added 21 characters in body
9h
asked Are the null string and “” the same string?
Apr
28
asked Why does bash's readline eat tab?
Apr
28
comment Delimiter in word splitting
@Jeff: No, you don't. My goal is to verify that the delimiters in IFS work, but since IFS doesn't control output delimiter, and I guess the default output delimiter for echo is space, I don't know why the output delimiter is changed by IFS.
Apr
28
comment Why is nothing shown from variable expansion?
Thanks. Why do the other two work?
Apr
28
comment Delimiter in word splitting
@jeff: both single and double work the same. But the output is the argumetns delimited by newline instead of space.
Apr
28
comment Delimiter in word splitting
@Jeff: the tab example works but the newline example still doesn't.
Apr
28
asked Why is nothing shown from variable expansion?
Apr
28
comment Delimiter in word splitting
@JeffSchaller: yes, but why did the ways I try not work?
Apr
28
comment Delimiter in word splitting
@JuliePelletier: what is $IFS meant for, if not for what the quote says?
Apr
28
asked Delimiter in word splitting