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Full Discussion: Problem in Running Script
Top Forums Shell Programming and Scripting Problem in Running Script Post 82419 by bakunin on Wednesday 31st of August 2005 08:25:39 PM
Old 08-31-2005
Using backticks is not recommended. Your original form was ok save for proper quotation:

str="$(df -k | grep /usr/local)"

which could better be written:

str="$( df -k /usr/local | sed '1d' )"

The second error is because of typo: "${# ...}" only works with arrays, giving back the number of elements in an array.

The whole construction with strlen is not too elegant, this one is easier and does the same:

size="$( df -k /usr/local | sed '1d;s/<spc><spc>*/<spc>/g' | cut -f3 -d'<spc>' )"

(replace "<spc>" with literal space characters)
baknin
Last edited by bakunin; 08-31-2005 at 09:31 PM..
 

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LEARN ABOUT OSX

systemd-rc-local-generator

SYSTEMD-RC-LOCAL-GENERATOR(8)				    systemd-rc-local-generator				     SYSTEMD-RC-LOCAL-GENERATOR(8)

NAME

       systemd-rc-local-generator - Compatibility generator for starting /etc/rc.local and /usr/sbin/halt.local during boot and shutdown

SYNOPSIS

       /lib/systemd/system-generators/systemd-rc-local-generator

DESCRIPTION

       systemd-rc-local-generator is a generator that checks whether /etc/rc.local exists and is executable, and if it is pulls the
       rc-local.service unit into the boot process. This unit is responsible for running this script during late boot. Note that the script will
       be run with slightly different semantics than the original System V version, which was run "last" in the boot process, which is a concept
       that does not translate to systemd. The script is run after network.target, but in parallel with most other regular system services.

       systemd-rc-local-generator also checks whether /usr/sbin/halt.local exists and is executable, and if it is pulls the halt-local.service
       unit into the shutdown process. This unit is responsible for running this script during later shutdown.

       Support for both /etc/rc.local and /usr/sbin/halt.local is provided for compatibility with specific System V systems only. However, it is
       strongly recommended to avoid making use of these scripts today, and instead provide proper unit files with appropriate dependencies for
       any scripts to run during the boot or shutdown processes.

       systemd-rc-local-generator implements systemd.generator(7).

SEE ALSO

       systemd(1), systemctl(1)

systemd 237													     SYSTEMD-RC-LOCAL-GENERATOR(8)
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