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top -n 1 | awk '{ if (NR==4) print int($5) }'

Hi,
you script currently overwrites log.txt every second. Use >> to append.
while [ 1 ]
do
ps ax|grep 5060 >> log.txt
echo " " >> log.txt
sleep 1
done

A space is missing 2 and ]
The operand is missing in the second elif statement

Try this... -ne means "not equal to"...

#!/bin/sh
if [ $# -ne 2 ]; then
echo "Invalid no. of arguments......

`...` or $(...) will actually execute the command.
with "...", you are actually just assigning the literals.


#!/bin/bash
CMD=$(shuf -i 1-5 -n 1)

echo $CMD
exit 0


PS : welcome to...