Re: [OT] Evaluate strings in bash
Oliver Fromme escribió: Matias Surdi wrote: > Oliver Fromme escribió: > > Matias Surdi wrote: > > > Oliver Fromme escribió: > > > > Matias Surdi wrote: > > > > > # echo $BINMAKE > > > > > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > > > > > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk > > > > > > > > > > I'd like to have a second variable like: > > > > > [code] > > > > > # echo $newvariable > > > > > make -m /usr/src/share/mk > > > > > > > > # newvariable=`eval echo $BINMAKE` > > > > > > I've already tried that, but doesn't work. > > > > It does work. Maybe you forgot the "echo" part? > > Maybe I've not explained it very well, look here: > http://www.linuxquestions.org/questions/linux-general-1/bash-strings-evaluation-664094/ You have explained it well enough, I think, and the solution I explained above works fine. If it doesn't work for you, then you did it wrong. The solution written at the URL you mentioned is unnecessarily complicated. $ echo $BINMAKE `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk $ newvariable=`eval echo $BINMAKE` $ echo $newvariable make -m /usr/src/share/mk $ Best regards Oliver You are right, this works fine also.I've forgot the "echo". Thanks for your help. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Matias Surdi wrote: > Oliver Fromme escribió: > > Matias Surdi wrote: > > > Oliver Fromme escribió: > > > > Matias Surdi wrote: > > > > > # echo $BINMAKE > > > > > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > > > > > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m > > > > > /usr/src/share/mk > > > > > > > > > > I'd like to have a second variable like: > > > > > [code] > > > > > # echo $newvariable > > > > > make -m /usr/src/share/mk > > > > > > > > # newvariable=`eval echo $BINMAKE` > > > > > > I've already tried that, but doesn't work. > > > > It does work. Maybe you forgot the "echo" part? > > Maybe I've not explained it very well, look here: > http://www.linuxquestions.org/questions/linux-general-1/bash-strings-evaluation-664094/ You have explained it well enough, I think, and the solution I explained above works fine. If it doesn't work for you, then you did it wrong. The solution written at the URL you mentioned is unnecessarily complicated. $ echo $BINMAKE `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk $ newvariable=`eval echo $BINMAKE` $ echo $newvariable make -m /usr/src/share/mk $ Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "Python is an experiment in how much freedom programmers need. Too much freedom and nobody can read another's code; too little and expressiveness is endangered." -- Guido van Rossum ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Oliver Fromme escribió: Matias Surdi wrote: > Oliver Fromme escribió: > > Matias Surdi wrote: > > > # echo $BINMAKE > > > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > > > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk > > > > > > I'd like to have a second variable like: > > > [code] > > > # echo $newvariable > > > make -m /usr/src/share/mk > > > > # newvariable=`eval echo $BINMAKE` > > I've already tried that, but doesn't work. It does work. Maybe you forgot the "echo" part? Best regards Oliver Maybe I've not explained it very well, look here: http://www.linuxquestions.org/questions/linux-general-1/bash-strings-evaluation-664094/ Thanks for your help. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Matias Surdi escribió: Hi, sorry for the offtopic, but maybe somebody can help me here. I've the following variable: [code] # echo $BINMAKE `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk # [/code] It's a string wich includes a commmand. How can I get the subcommand replaced by its output? I'd like to have a second variable like: [code] # echo $newvariable make -m /usr/src/share/mk # [code] Thanks a lot. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]" I've finally managed to do what I was trying to do, look here: http://www.linuxquestions.org/questions/linux-general-1/bash-strings-evaluation-664094/ Thank you all for your help :-) ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Matias Surdi wrote: > Oliver Fromme escribió: > > Matias Surdi wrote: > > > # echo $BINMAKE > > > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > > > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk > > > > > > I'd like to have a second variable like: > > > [code] > > > # echo $newvariable > > > make -m /usr/src/share/mk > > > > # newvariable=`eval echo $BINMAKE` > > I've already tried that, but doesn't work. It does work. Maybe you forgot the "echo" part? Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "To this day, many C programmers believe that 'strong typing' just means pounding extra hard on the keyboard." -- Peter van der Linden ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Oliver Fromme escribió: Matias Surdi wrote: > # echo $BINMAKE > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk > > I'd like to have a second variable like: > [code] > # echo $newvariable > make -m /usr/src/share/mk # newvariable=`eval echo $BINMAKE` By the way, this has nothing to do with bash. Those things work with every bourne shell, including FreeBSD's /bin/sh. It even works with Solaris' /bin/sh which is very far from a POSIX shell. :-) Best regards Oliver I've already tried that, but doesn't work. $newvariable will end with the output of running "make -m /usr/src/share/mk" on the current directory and not with the string "make -m /usr/src/share/mk" which is wat I want. Thanks a lot for your help. ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
On Aug 20, 2008, at 9:31 AM, Matias Surdi wrote: I've the following variable: [code] # echo $BINMAKE `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo /usr/obj/usr/ src/make.i386/make; else echo make; fi` -m /usr/src/share/mk # [/code] It's a string wich includes a commmand. How can I get the subcommand replaced by its output? I think you're looking for "eval $BINMAKE"...? -- -Chuck ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
Re: [OT] Evaluate strings in bash
Matias Surdi wrote: > # echo $BINMAKE > `if [ -x /usr/obj/usr/src/make.i386/make ]; then echo > /usr/obj/usr/src/make.i386/make; else echo make; fi` -m /usr/src/share/mk > > I'd like to have a second variable like: > [code] > # echo $newvariable > make -m /usr/src/share/mk # newvariable=`eval echo $BINMAKE` By the way, this has nothing to do with bash. Those things work with every bourne shell, including FreeBSD's /bin/sh. It even works with Solaris' /bin/sh which is very far from a POSIX shell. :-) Best regards Oliver -- Oliver Fromme, secnetix GmbH & Co. KG, Marktplatz 29, 85567 Grafing b. M. Handelsregister: Registergericht Muenchen, HRA 74606, Geschäftsfuehrung: secnetix Verwaltungsgesellsch. mbH, Handelsregister: Registergericht Mün- chen, HRB 125758, Geschäftsführer: Maik Bachmann, Olaf Erb, Ralf Gebhart FreeBSD-Dienstleistungen, -Produkte und mehr: http://www.secnetix.de/bsd "C++ is the only current language making COBOL look good." -- Bertrand Meyer ___ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
