Remove Command-Line Option from String Post: 302435573

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Top Forums Shell Programming and Scripting Remove Command-Line Option from String Post 302435573 by mattmiller on Wednesday 7th of July 2010 05:03:09 PM

07-07-2010

Registered User

Quote:

${@:4:1} ${@:1:2} ${@:5}

That looks like it's designed exclusively for the example I posted, but I'm looking for a more generic solution. The "-r <remote_host>" text might be anywhere in $@.

---------- Post updated at 09:03 PM ---------- Previous update was at 08:55 PM ----------

Quote:

sed 's/-/~-/g' | tr "~" "\n" | egrep -v "\-r" | tr -d "\n"

That works for the example I posted, but it seems to assume that the text I need to remove is bounded by minus signs. For example, if "-r ..." is the last option, and is followed by arguments, that code doesn't pass the arguments through:

Code:

# echo the_script -a -b -r the_remote_host arg1 arg2 | sed 's/-/~-/g' | tr "~" "\n" | egrep -v "\-r" | tr -d "\n"                     
the_script -a -b

The approach of splitting into multiple lines and using "grep -v" is interesting, though.

mattmiller

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zfgrep

ZGREP(1)						    BSD General Commands Manual 						  ZGREP(1)

NAME

     zgrep, zegrep, zfgrep -- print lines matching a pattern in gzip-compressed files

SYNOPSIS

     zgrep [grep-flags] [--] pattern [files ...]

     zegrep [grep-flags] [--] pattern [file ...]

     zfgrep [grep-flags] [--] pattern [file ...]

DESCRIPTION

     zgrep runs grep(1) on files or stdin, if no files argument is given, after decompressing them with zcat(1).

     The grep-flags and pattern arguments are passed on to grep(1).  If an -e flag is found in the grep-flags, zgrep will not look for a pattern
     argument.

     zegrep calls egrep(1), while zfgrep calls fgrep(1).

EXIT STATUS

     In case of missing arguments or missing pattern, 1 will be returned, otherwise 0.

SEE ALSO

     egrep(1), fgrep(1), grep(1), gzip(1), zcat(1)

AUTHORS

     Thomas Klausner <wiz@NetBSD.org>

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								 December 28, 2003							       BSD