On 27 February 2013 10:58, Binand Sethumadhavan <[email protected]> wrote: > On 27 February 2013 10:52, Rajeev R. K. <[email protected]> wrote: >>> How about: >>> >>> if [ $( grep -cE '/(home|backup)' /etc/mtab ) = 2 ]; then >>> echo Found both mounts >>> else >>> echo Found only one of the two mounts >>> fi >>> >>> (Refine as per your needs) >>> >> >> Fails for Case where mount points /home and /home_new exist. Still get >> count 2 with no backup. In addition, if i have /backup mounted too, > > Come on man, that's why I specifically mentioned "refine to your > needs". If I were to refine this for Rony's needs as he articulated, > I'd write that regex as: > > '^[^[:space:]]*[[:space:]]/(home|backup)[[:space:]]' > > Which covers all the special cases you mention and some more.
Lolz, No worries man, i was just approaching it from a design perspective, rather than targeting code brevity. I still say having independent tests makes most of these edge cases moot, and plus has another important advantage from a usability perspective. It allows you to specifically inform the user of why the script aborted, specifically identifying which of the 2 required mount points was not available(or both, for that matter). If the script is to fail, let it fail with class :-) Regards R. K. Rajeev > > Binand > -- > http://mm.ilug-bom.org.in/mailman/listinfo/linuxers -- http://mm.ilug-bom.org.in/mailman/listinfo/linuxers
