xargs pitfalls — handling filenames with spaces and special characters

xargs splits input on spaces, breaking commands when filenames contain spaces, quotes, or special characters. Files named 'my file.txt' get split into 'my' and 'file.txt'.

Use null-delimited input: find . -name '.txt' -print0 | xargs -0 rm. The -print0 flag outputs null bytes between filenames, and -0 tells xargs to split on null bytes only. Alternative: use find -exec: find . -name '.txt' -exec rm {} +. The + variant batches files for efficiency. For other input: tr '\n' '\0' | xargs -0. In bash 4+: use mapfile/readarray instead: mapfile -t files < <(find . -name '*.txt') then operate on the array.

xargs defaults to splitting on any whitespace (spaces, tabs, newlines). Filenames are unrestricted in Unix (except / and null byte), so any character is valid and must be handled.