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05-23-2008
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How to put the default value
Hi guys
Iam looking for a small help.I wrote a script. in that iam trying to take the default value ,when we press enter.this part iam struggling can somebody help please Example: do u need this server[dingdong.xxx.com]: For this one if we press enter it has to take server name as dingdong.xxx.com. Can somebody help me with this.Appreciate your help guys --CoolKid Last edited by coolkid; 05-23-2008 at 04:47 PM.. |
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05-23-2008
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You can use the following syntax: Code:
$ ./s
do u need this server[dingdong.xxx.com]:
server is: dingdong.xxx.com
$ ./s
do u need this server[dingdong.xxx.com]: another
server is: another
$ cat s
#! /bin/bash
read -p "do u need this server[dingdong.xxx.com]: " server
printf "server is: ${server:=dingdong.xxx.com}\n"For more info check the man pages of your shell, for example: Code:
man bash|less -p:= Code:
${parameter:=word} Assign Default Values. If parameter is unset or
null, the expansion of word is assigned to parame‐
ter. In all cases, the final value of parameter is
substituted. Only variables, not positional param‐
eters or special parameters, can be assigned in
this way. |
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05-23-2008
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nice one... have to remember this!
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