linux - Alphanumeric sorting of a string with variable width size -

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i stuck in small sorting step. have huge file >300k entries , file has sorted on specific column containing alphanumeric identifiers as

rpl12-8 lrsam1-1 rpl12-9 lrsam1-2 rpl12-10 lrsam1-5 rpl12-11 lrsam1-101 lrsam2-1 act-1 act-100 act-101 act-11

the problem variable width size, unable specify second key identifier (sort -k 1.8n).the first sort on first alphabet, on number next , third number after "-". can enable sorting after "-" using delimiter field don't care width of string.

desired output :

act-1 act-11 act-100 act-101 lrsam1-1 lrsam1-2 lrsam1-5 lrsam1-101 lrsam2-1 rpl12-8 rpl12-9 rpl12-10 rpl12-11

with above data in input.txt:

sort -t- -k1,1 -k2n input.txt

you can change field delimiter - -t, sort on first field (as string) -k1,1, , 2nd field (as number) -k2n.


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