Wise Monks,

I am doing an in-place replacement in a text file which succeeds but one (?) extra newline is added at the end of the file:

The input file (a):

1
2
3

[download]

The command:

perl -i -lp0e 's/2/4/gs' a

Output

1
4
3

# there is an extra newline at the end, above

[download]

Looping the above command (the replacement is done only the first time), will yield as many newlines at the end:

for i in $(seq 1 10); do perl -i.x -lp0e 's/2/4/gs' a; done

[download]
@@@@

bw, bliako

In reply to Oneliner replace in-place adds extra spaces at the end of the file by bliako

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