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cuonglm
  • Member for 10 years, 11 months
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278 votes
5 answers
73k views

Why is using a shell loop to process text considered bad practice?

41 votes
1 answer
16k views

Is `tail -f` more efficient than `less +F`?

21 votes
4 answers
2k views

Why some shells `read` builtin fail to read the whole line from file in `/proc`?

16 votes
9 answers
7k views

Check variable is an array in Bourne like shell?

13 votes
1 answer
2k views

What is the point of using multiple exclamation marks in sed?

9 votes
1 answer
338 views

Is this tail behavior in Grouping Commands specified by POSIX?

7 votes
3 answers
645 views

Why zsh and ksh93 chose to be non-compliant in pattern matching?

5 votes
1 answer
621 views

Is field splitting and filename expansion turn off in RHS of variable assignment portable?

5 votes
1 answer
441 views

Does POSIX sh allow empty compound-list in first condition and empty condition in case conditional construct?

5 votes
2 answers
590 views

Why do `env var=value` allow arbitrary name in var?

3 votes
2 answers
516 views

Assignment in braces vs outside braces in awk

3 votes
2 answers
808 views

Debian Jessie initramfs-tools strange behavior

3 votes
2 answers
145 views

How to source `. filename` reliably?

3 votes
1 answer
155 views

Why zsh precommand modifiers stop accepting arguments if quoted?

2 votes
2 answers
260 views

Why does zsh allow name to be null in ${name:-word}?

2 votes
1 answer
237 views

Why POSIX left `$(expression)` in awk unspecified?

1 vote
1 answer
119 views

Is `var=value builtin` the same as `var=value; builtin`?