TEST(1) TEST(1) test - test test [ ] [ ]" [ --help --version ( ) ! 1 -a 2 1 2 1 -o 2 1 2 -n STRING -n -z 0 1 = 2 1 != 2 1 -eq 2 1 2 1 -ge 2 1 2 1 -gt 2 1 2 1 -le 2 1 2 1 -lt 2 1 2 1 -ne 2 1 2 1 -ef 2 1 2 inode 1 -nt 2 1 2 1 -ot 2 1 2 -b -c -d -e -f -g set-group-ID -g ID -h -L -k -L -h -N -O ID -p -r -s -S -t FD FD -u set-user-ID -w -x -h -L shell "-l " -a -o "test EXPR1 &&test EXPR2" "test EXPR1 || test EXPR2" [ --help --version test test shell test / [ shell Kevin Braunsdorf Matthew Bradburn GNU coreutils Copyright (C) 2022 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. access(2) info '(coreutils) test invocation' man man https://github.com/man-pages-zh/manpages- zh GNU coreutils 9.1 20229 TEST(1)