shellscriptif-s

The purpose of the “-e” operator is to tell us whether a file exists in the specified directory or not. The “-s” operator tells us that the file is not a zero ...

2017年11月6日 — 1 Answer 1 ... You have the answer in your question itself :-) -s $fname expression evaluates to True if the file in variable $fname exists and is ...

2019年4月15日 — As the name suggests, its job is to test some attribute of a string, number, or file, and return 0 (which represents true in shell scripts) if ...

2017年3月31日 — The [[ ... ]] part allows to test a condition using operators. Think of it as an if statement. In your example, you're using the -s ...

2022年12月15日 — [[...]] is a shell construct. [[ , and ]] being reserved words in the syntax of the shell, inside which the shell understands a form of ...

2022年8月3日 — The keyword if is followed by a condition. · This condition is evaluated to decide which statement will be executed by the processor. · If the ...

Shell Script if / else 條件判斷式. Sam Tang 27 December 2016 Linux No Comments ... -s file file 的體積大於0 (不是空檔案) 回傳true. -w file file 可寫入回傳 ...

Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left=43 -o page-right=22 ...

2012年3月5日 — Hello. System : opensuse leap 42.3 I have a bash script that build a text file. I would like the last command doing : print_cmd -o page-left ...