2023年2月17日

摘要： 3.5.2 Tilde Expansion echo "~" # only begin with an unquoted character is considered a tilde-prefix echo ~ touch t.txt ls ~+/t.txt # use the shell var 阅读全文

摘要： These definitions are used throughout the remainder of this manual. from bash Enclosing characters in double quotes (‘"’) preserves the literal value 阅读全文

摘要： https://www.gnu.org/software/bash/manual/bash.html#Bash-POSIX-Mode 阅读全文

摘要： eval_tutorialspint eval [arg...] Eval command can execute than command stored in the string Example # example1 $COMMAND="ls -lrt" $eval $COMMAND #exam 阅读全文