How to sort Integer Array in ksh | Unix Shell Scripting

问题

How to sort integer array in KornShell. Found this link, KornShell Sort Array of Integers but it seems to be not working and throwing error.

Code:

NUM_ARR[1]=-1
NUM_ARR[2]=-2
NUM_ARR[3]=-3
NUM_ARR[4]=-4
NUM_ARR[5]=-5
NUM_ARR[6]=-6
NUM_ARR[7]=-7
for file in /home/fimsctl/datafiles/outbound/timelog/timelog_file_*.csv ; do

    SORTED_NUM_ARR=`($(printf "%s\n" ${NUM_ARR[@]} | sort -n))`
 echo ${SORTED_NUM_ARR[*]}
 done

Output:

testb.ksh[118]: -7:  not found

回答1:

You can use sort with process substitution:

sort -n <(printf "%s\n" "${NUM_ARR[@]}")

来源：https://stackoverflow.com/questions/27900170/how-to-sort-integer-array-in-ksh-unix-shell-scripting