linux if and
... how to get run the following: data1="hello" data2="world" if [ "--$data2" != "world" && "--$data1" != "hello&quo | The UNIX and Linux Forums., Again, there is yet another way that does not use the if command:- ... string2="Hello" string3="Hello" string4="Hello" bool1=1 if [ "$string1" !=, If you want to say OR use double pipe ( || ). if [ "$fname" = "a.txt" ] || [ "$fname" = "c.txt" ]. (The original OP code using | was simply piping the ..., 12.4.1 利用if .... then： 單層簡單條件, 多重複雜條件, 檢驗$1內容, 網路狀態, 退伍; 12.4.2 利用case ..... esac 判斷; 12.4.3 利用function 功能. 12.5 迴 ...,跳到 if...then...fi - 好了，現在我們如果要讓scripts 加上『判斷』要如何來工作呢？這就是所謂的條件式判斷了！最常使用到的就是『 if ... then .... else if .... then ... , What you have should work, unless $STATUS} is empty. It would probably be better to do: if ! [ "$STATUS}" -eq 200 ] 2> /dev/null ...,for g in 1 2 3 do for c in 123 456 789 do if [[ ( "$g" -eq 1 && "$c" = "123" ) || ( "$g" -eq 2 && "$c" = "456" ) ]] then echo "g = $g; c = $c; true" else echo "g = ,This should work: #!/bin/bash if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then echo "hello" fi. I'm not sure if this is different in other shells but if you wish to use <, >, you need to ... ,However, I don't think it's needed in this case, -e xyzzy is true if the xyzzy file exists and can quite easily handle empty strings. If that's what you want then you ... , shell中括号的特殊用法linux if多条件判断. 一． bash [ ] 单双括号. 基本要素：. Ø [ ] 两个符号左右都要有空格分隔. Ø 内部操作符与操作变量之间要有 ...
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 linux if and 相關參考資料
using && in if statement .. - Unix.com
... how to get run the following: data1="hello" data2="world" if [ "--$data2" != "world" && "--$data1" != "hello&quo | The UNIX and ... https://www.unix.com shell - sh AND and OR in one command - Unix & Linux Stack Exchange
Again, there is yet another way that does not use the if command:- ... string2="Hello" string3="Hello" string4="Hello" bool1=1 if [ "$string1" != https://unix.stackexchange.com In a bash script, using the conditional "or" in an "if" statement ...
If you want to say OR use double pipe ( || ). if [ "$fname" = "a.txt" ] || [ "$fname" = "c.txt" ]. (The original OP code using | was simply piping the ... https://unix.stackexchange.com 鳥哥的Linux 私房菜-- 第十二章、學習Shell Scripts
12.4.1 利用if .... then： 單層簡單條件, 多重複雜條件, 檢驗$1內容, 網路狀態, 退伍; 12.4.2 利用case ..... esac 判斷; 12.4.3 利用function 功能. 12.5 迴 ... http://linux.vbird.org 鳥哥的Linux 私房菜-- 學習Shell Scripts
跳到 if...then...fi - 好了，現在我們如果要讓scripts 加上『判斷』要如何來工作呢？這就是所謂的條件式判斷了！最常使用到的就是『 if ... then .... else if .... then ... http://linux.vbird.org Bash - an "and" operator for "if" statement - Stack Overflow
What you have should work, unless $STATUS} is empty. It would probably be better to do: if ! [ "$STATUS}" -eq 200 ] 2> /dev/null ... https://stackoverflow.com How to represent multiple conditions in a shell if statement ...
for g in 1 2 3 do for c in 123 456 789 do if [[ ( "$g" -eq 1 && "$c" = "123" ) || ( "$g" -eq 2 && "$c" = "456" ) ]] then ech... https://stackoverflow.com How to do a logical OR operation in Shell Scripting - Stack Overflow
This should work: #!/bin/bash if [ "$#" -eq 0 ] || [ "$#" -gt 1 ] ; then echo "hello" fi. I'm not sure if this is different in other shells but if you wish to use <... https://stackoverflow.com bash conditionals: how to "and" expressions? (if [ ! -z $VAR && -e ...
However, I don't think it's needed in this case, -e xyzzy is true if the xyzzy file exists and can quite easily handle empty strings. If that's what you want then you ... https://stackoverflow.com shell中括号的特殊用法linux if多条件判断- 浮沉一梦- 博客园
shell中括号的特殊用法linux if多条件判断. 一． bash [ ] 单双括号. 基本要素：. Ø [ ] 两个符号左右都要有空格分隔. Ø 内部操作符与操作变量之间要有 ... https://www.cnblogs.com |