WebJul 29, 2013 · The C shell (csh) or the improved version, tcsh is a Unix shell that was originally created by Bill Joy at University of California, Berkeley in the late 1970s. Advertisement Syntax The syntax is as follows: while ( condition ) # do something # command 1 # command 2 end OR set i = 1 WebSep 23, 2024 · 易采站长站为你提供关于在shell脚本中，发现case语句的一个问题。 就是指定小写字母[a-z]和大写字母[A-Z]的这种方法不管用了。 出现如下情况： 代码如下: [root@station1 ~]# cat case.sh #!/bin/bash while : do echo -n "input的相关内容

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Webecho "-io : Runs a disk speed test and a IOPing benchmark and displays the results." echo "-iops : Runs a extended IOPing test for latency, reading and et cetera." echo "-6 : … WebShell echo命令 Shell 的 echo 指令与 PHP 的 echo 指令类似，都是用于字符串的输出。命令格式： echo string 您可以使用echo实现更复杂的输出格式控制。 1.显示普通字符串: … cisco switch show interface

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WebSome Unix systems use echo -n message to tell echo not to append a newline; others use echo message \c to do the same thing: echo -n "Enter your name: " read name echo "Hello, $name" This will work on some systems, and will look like this: Enter your name: Steve Hello, Steve However, on other systems, you need to write the code like this: http://parallel.vub.ac.be/documentation/linux/unixdoc_download/Scripts.html WebConclusion. In the Bash shell script, $$ is a special variable that represents the process ID (PID) of the current shell. This means that $$ expands to the PID of the Bash process that is currently executing the script. The value of the “$$” variable can be checked through the pre-installed “ echo ” and the “ ps (process)” commands. cisco switch show hardware status