Scripting - how to make an if-else in csh script, I'm trying to make an if-else in csh script but it is not working: do you know why this is not working? if Making statements based on opinion; back them up with references or personal experience. To learn more, see our tips on ...
if - then -else 不管if是否执行成功,都有另外一种选择。如果if返回一个非0的状态,shell会继续执行下一个命令。 if command then command else command fi 1. 2. 3. 4. 5. 当if 返回的状态码是0时,then部分命令会执行,当if返回状态码非0时,shell会执行else部分的命令 [root@zw-test-db ~]# vim te...
写法2:我们改变一下第一个fi的位置就可以输出嵌套的if-then语句内容,但是if-then-else加if-then两种语句的结合。 [00:19:23 root@libin3 libin]# vim shell24 #!/bin/bash # Test is if-then-else-fi V2 # libin=rhce # if grep $libin /etc/passwd then echo "the user $libin exist in syste...
/bin/bash# Test two number who is bigger#2016-0828 author chawan#[$#-ne2]&&echo"Please give two number !"&&exit1if[$1-ge$2];thenecho"First number$1is bigger"elseecho"Second number$2is bigger"fi[root@localhost test]# chmod +x if12[root@localhost test]# ./if12Please give two nu...
$ csh $ if [ -f /export/home/insite/.insiteINFO ] ; then echo "1" ; else echo "0" ; fi if: Expression Syntax. then: Command not found. else? Run Code Online (Sandbox Code Playgroud) 尝试将测试包装在 /bin/sh 中: $ /bin/sh -c 'if [ -f /export/home/insite/.insiteINFO...
"a user-name in the password file" else echo "At least one of the three test conditions is false" fi Using -e option in sh Example 6 Using /usr/bin/test for the -e option If one really wants to use the -e option in sh, use ...
else echo "Welcome, $name. You are old enough." fi 在上面的示例中,我们使用source命令引入了一个名为external_script.sh的外部脚本。然后,我们定义了一个名为name的变量,并将其设置为"John",定义了一个名为age的变量,并将其设置为25。接下来,我们使用if语句判断age是否小于18,如果是,则输出一条消息表示...
The #if expression ("macros" in FEATURES in the example) is Python code, so it has Python's full comparison richness. A number of preprocessor statements are implemented: #define VAR [VALUE] #undef VAR #ifdef VAR #ifndef VAR #if EXPRESSION #elif EXPRESSION #else #endif #error ERROR_STRIN...
running script manually is ok. but if i run it from cron i have an error:/home/scripts/test.sh[21]: Syntax error at line 56 : `else' is not matched. why?my script is:#!/usr/bin/cshset p_monit=/home/scripts/MONITORING#--->12132005 This is to take correct name in scriptcd /...
其中elif和else可选。 例:#!/bin/sh Fruit=apple F=b if $Fruit>$F; then echo $Fruit else echo $F fi 使用test:test expression,可用文件测试、字符串比较、数字比较。 (2)case语法:case word in pattern1) list1 ;; Pattern2) list2 ;; ...