[CentOS] yum remove from stdout
Kenneth Burgener
kenneth at mail1.ttak.orgSun Jul 13 22:48:01 UTC 2008
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On 7/13/2008 10:43 AM, William L. Maltby wrote: > On Sun, 2008-07-13 at 11:21 -0500, Johnny Hughes wrote: >> OR ... >> >> yum remove `cat result` > > The winner! And if running a modern bash > > yum remove $(cat result) Interesting. According to the bash man page `command` and $(command) are slightly different (in regards to backslashes). I always assumed they were identical in every way. ======================== Command Substitution Command substitution allows the output of a command to replace the command name. There are two forms: $(command) or ‘command‘ Bash performs the expansion by executing command and replacing the command substitution with the standard output of the command, with any trailing newlines deleted. ... *When the old-style backquote form of substitution is used, backslash retains its literal meaning except when followed by $, ‘, or \.* The first backquote not preceded by a backslash terminates the command substitution. When using the $(command) form, all characters between the parentheses make up the command; none are treated specially. ======================== Kenneth
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