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Top Forums Shell Programming and Scripting Pipes with the < and >> meanings. Post 302517768 by mirni on Wednesday 27th of April 2011 05:24:08 PM
Old 04-27-2011
That's awesome, thank you!
Although I've been using parameter expansion ${var%pat} quite a bit, the pound and percent I've been confusing all along. The mnemonic is great!
One think that I have yet to be explained is the redirection from subshell in this manner:
Code:
$ while read i ; do echo i $i ; done <(echo blah | sed 's/la/LA/')
bash: syntax error near unexpected token `<(echo blah | sed 's/la/LA/')'

But the following works:
Code:
$ while read i ; do echo i $i ; done < <(echo blah | sed 's/la/LA/')
i bLAh

Why do I need two '<' in this construct?
 

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DH_PYTHON3(1)							   User Commands						     DH_PYTHON3(1)

NAME
dh_python3 - calculates Python 3 dependencies, adds maintainer scripts to byte compile files, etc. SYNOPSIS
dh_python3 -p PACKAGE [-V [X.Y][-][A.B]] DIR_OR_FILE [-X REGEXPR] OPTIONS
--version show program's version number and exit -h, --help show this help message and exit --no-guessing-deps disable guessing dependencies --no-dbg-cleaning do not remove any files from debug packages --skip-private don't check private directories -v, --verbose turn verbose mode on -i, --indep act on architecture independent packages -a, --arch act on architecture dependent packages -q, --quiet be quiet -p PACKAGE, --package=PACKAGE act on the package named PACKAGE -N NO_PACKAGE, --no-package=NO_PACKAGE do not act on the specified package -V VRANGE specify list of supported Python versions. See py3compile(1) for examples -X REGEXPR, --exclude=REGEXPR exclude items that match given REGEXPR. You may use this option multiple times to build up a list of things to exclude. --compile-all compile all files from given private directory in postinst/rtupdate not just the ones provided by the package (i.e. do not pass the --package parameter to py3compile/py3clean) --depends=DEPENDS translate given requirements into Debian dependencies and add them to ${python:Depends}. Use it for missing items in requires.txt. --recommends=RECOMMENDS translate given requirements into Debian dependencies and add them to ${python:Recommends} --suggests=SUGGESTS translate given requirements into Debian dependencies and add them to ${python:Suggests} SEE ALSO
/usr/share/doc/python3-doc/README.PyDist (python3-doc package) dh_python3 3.0~beta2 September 2010 DH_PYTHON3(1)
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