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05-29-2008
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How to build a command into a string rather than execute the command
I'm trying to populate a command line into a variable. It appears to be executing, instead. Here's an example:
mycmd='' if ...; then $mycmd='sudo ' fi $mycmd=$mycmd 'sed -i prev s/aaa/bbb/' $myfile res=`$mycmd` (I'm also not sure of the best way to execute the command from the variable, either, so any corrections would be appreciated!) Last edited by littlejon; 05-29-2008 at 08:56 PM.. |
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05-29-2008
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Quote:
(no $ at the beginning of the line) Quote:
Code:
fab@adeon:~$ a="echo hi" fab@adeon:~$ $a hi fab@adeon:~$ eval $a hi Last edited by fabtagon; 05-29-2008 at 09:08 PM.. Reason: 2nd question & markup fix |
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