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Shell Programming and Scripting

Problem with pipes on infinite streams

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# 8  
Old 05-11-2010
Hi alister,
In your code:
Quote:
Originally Posted by alister
Code:
kill %?stream

What does %? stands for?
Thanks for your help.
Bye
# 9  
Old 05-11-2010
it is from bash job control - see the 'advanced bash scripting guide' online
Quote:
Job number n may be referred to as ‘%n’. The symbols ‘%%’ and ‘%+’ refer to the shell's notion of the current job, which is the last job stopped while it was in the foreground or started in the background. A single ‘%’ (with no accompanying job specification) also refers to the current job. The previous job may be referenced using ‘%-’. If there is only a single job, ‘%+’ and ‘%-’ can both be used to refer to that job. In output pertaining to jobs (e.g., the output of the jobs command), the current job is always flagged with a ‘+’, and the previous job with a ‘-’.

A job may also be referred to using a prefix of the name used to start it, or using a substring that appears in its command line. For example, ‘%ce’ refers to a stopped ce job. Using ‘%?ce’, on the other hand, refers to any job containing the string ‘ce’ in its command line. If the prefix or substring matches more than one job, Bash reports an error.
I believe it is not part of POSIX, just a bash extension.
This User Gave Thanks to jim mcnamara For This Post:
chebarbudo
# 10  
Old 05-11-2010
Thanks jim mcnamara,
When you say job, do you mean any process or only those that are displayed by the command jobs?
# 11  
Old 05-11-2010
Quote:
Originally Posted by chebarbudo
Thanks jim mcnamara,
When you say job, do you mean any process or only those that are displayed by the command jobs?
The latter.
This User Gave Thanks to Corona688 For This Post:
chebarbudo
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