Re: помогите упростить условие bash

2013-12-01 Пенетрантность Vladimir Skubriev 

30.11.2013 00:48, Oleksandr Gavenko пишет:
А POSIX то не дочитали...: 
http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_09_05_01 
2.9.5 Function Definition Command ... Exit Status The exit status of a 
function definition shall be zero if the function was declared 
successfully; otherwise, it shall be greater than zero. The exit 
status of a function invocation shall be the exit status of the last 
command executed by the function. 


Вот тебе и чтение манов на ночь )

Спасибо. Закоммитил.

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Vladimir Skubriev


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Re: помогите упростить условие bash

2013-11-30 Пенетрантность Oleksandr Gavenko 
On 2013-11-29, dimas wrote:

   check_rebuild_status() {
   grep -q recovery /proc/mdstat
   }
 тогда уж сразу греп, нафиг такая функция?

Я знаю что вы шутите, и все же SPOT[1], модульность, повторное использование,
самодокументируемость...

  [1] http://en.wikipedia.org/wiki/Single_Point_of_Truth

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Re: помогите упростить условие bash

2013-11-29 Пенетрантность Oleksandr Gavenko 
On 2013-11-29, Vasily Ivanov wrote:

 On 29.11.13 0934 (+0400), Vladimir Skubriev wrote:
 check_rebuild_status(){
 if [ $(grep recovery /proc/mdstat -c) -ne 0  ]; then
 return 0
 else
 return 1
 fi
 }
 
 Чтобы было более элегантно.

 check_rebuild_status(){
 grep -q recovery /proc/mdstat
 return $?
 }


  check_rebuild_status() {
  grep -q recovery /proc/mdstat
  }

 -q, --quiet, --silent
 Quiet; do not write anything to standard output. Exit immediately with
 zero status if any match is found, even if an error was detected.  Also
 see the -s or --no-messages option. (-q is specified by POSIX.)

А POSIX то не дочитали...:

  
http://pubs.opengroup.org/onlinepubs/009695399/utilities/xcu_chap02.html#tag_02_09_05_01

  2.9.5 Function Definition Command

  ...

  Exit Status

  The exit status of a function definition shall be zero if the function was
  declared successfully; otherwise, it shall be greater than zero. The exit
  status of a function invocation shall be the exit status of the last command
  executed by the function.

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Re: помогите упростить условие bash

2013-11-29 Пенетрантность dimas 
   check_rebuild_status() {
   grep -q recovery /proc/mdstat
   }
тогда уж сразу греп, нафиг такая функция?


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помогите упростить условие bash

2013-11-28 Пенетрантность Vladimir Skubriev 

check_rebuild_status(){
if [ $(grep recovery /proc/mdstat -c) -ne 0  ]; then
return 0
else
return 1
fi
}

Чтобы было более элегантно.

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Vladimir Skubriev


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Re: помогите упростить условие bash

2013-11-28 Пенетрантность Vasily Ivanov 
On 29.11.13 0934 (+0400), Vladimir Skubriev wrote:
 check_rebuild_status(){
 if [ $(grep recovery /proc/mdstat -c) -ne 0  ]; then
 return 0
 else
 return 1
 fi
 }
 
 Чтобы было более элегантно.

check_rebuild_status(){
grep -q recovery /proc/mdstat
return $?
}

-q, --quiet, --silent
Quiet; do not write anything to standard output. Exit immediately with
zero status if any match is found, even if an error was detected.  Also
see the -s or --no-messages option. (-q is specified by POSIX.)


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