Use declare to see what functions are active for your shell. The -F flag lists them and the -f flag lists and shows how they are defined:
# function myfunc(){ echo "foo: $@"; }
# myfunc bar
foo: bar
# declare -f
declare -f myfunc
# declare -F
myfunc ()
{
echo "foo: $@"
}# ssh toaster01 "sysconfig -a " |grep NETAPP | sed -e 's/ :/:/' | sort -u | awk '{print $3":"$5}' | sort | uniq -c
250 X306_WMANT02TSSM:1695.4GB
230 X308_SMNRY03TSSM:2538.5GB
#To get all entries in a table with a “datetime” field that is newer than 3 days ago (i.e. maybe a user last logged in in the last 72 hours):
mysql> select id,timestamp_field from sometable where timestamp_field > ( CURDATE() - INTERVAL 3 DAY );Note that you could just use “where like” if you were looking for just today, or just yesterday, or just some month. In this case “newer than 3 days” means “since right now minus 72 hours”
There’s a multitude of ways to compare timestamps from a point in time (i.e. now()).
Here’s older than 3 months:
timestamp_field < ( CURDATE() - INTERVAL 3 MONTH )
Use tmpfs:
mkdir /tmp/tmpfs && mount -t tmpfs -o size=8G tmpfs /tmp/tmpfs