#!/bin/bash X=3 Y=4 empty_string="" if [ $X -lt $Y ] # is $X less than $Y ? then echo "\$X=${X}, which is smaller than \$Y=${Y}" fi if [ -n "$empty_string" ]; then echo "empty string is non_empty" fi if [ -e "${HOME}/.fvwmrc" ]; then # test to see if ~/.fvwmrc exists echo "you have a .fvwmrc file" if [ -L "${HOME}/.fvwmrc" ]; then # is it a symlink ? echo "it's a symbolic link" elif [ -f "${HOME}/.fvwmrc" ]; then # is it a regular file ? echo "it's a regular file" fi else echo "you have no .fvwmrc file" fi
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2017年11月22日 星期三
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