I have a Linux bash script 'myshell'. I want it to read two dates as parameters, for example: myshell date1 date2
. I am a Java programmer, but don't know how to write a script to get this done.
我有一个Linux bash脚本“myshell”。我希望它读取两个日期作为参数,例如:myshell date1 date2。我是一个Java程序员,但不知道如何编写脚本才能完成这个任务。
The rest of the script is like this:
剧本的其余部分是这样的:
sed "s/$date1/$date2/g" wlacd_stat.xml >tmp.xml
mv tmp.xml wlacd_stat.xml
4 个解决方案
#1
61
you use $1
, $2
in your script eg
你在脚本中使用$1,$2
date1="$1"
date2="$2"
sed "s/$date1/$date2/g" wlacd_stat.xml >temp.xml ;mv temp.xml wlacd_stat.xml #Semicolon can also replaced with a newline
#2
9
To iterate over the parameters, you can use this shorthand:
要遍历参数,可以使用以下简写:
#!/bin/bash
for a
do
echo $a
done
This form is the same as for a in "$@"
.
此表与“$@”中的a相同。
#3
7
Bash arguments are named after their position.
Bash参数是根据它们的位置命名的。
Moreover, if you need to handle one argument after the other, you can shift them and always use $1
:
此外,如果你需要处理一个又一个的争论,你可以改变他们,并且总是使用$1:
while [ $# -gt 0 ]
do
echo $1
shift
done
#4
6
$0 $1 $2
$ 0 $ 1 $ 2
And so on will contain the script name, then the first and the second line argument.
然后将包含脚本名,然后是第一个和第二个行参数。
#1
61
you use $1
, $2
in your script eg
你在脚本中使用$1,$2
date1="$1"
date2="$2"
sed "s/$date1/$date2/g" wlacd_stat.xml >temp.xml ;mv temp.xml wlacd_stat.xml #Semicolon can also replaced with a newline
#2
9
To iterate over the parameters, you can use this shorthand:
要遍历参数,可以使用以下简写:
#!/bin/bash
for a
do
echo $a
done
This form is the same as for a in "$@"
.
此表与“$@”中的a相同。
#3
7
Bash arguments are named after their position.
Bash参数是根据它们的位置命名的。
Moreover, if you need to handle one argument after the other, you can shift them and always use $1
:
此外,如果你需要处理一个又一个的争论,你可以改变他们,并且总是使用$1:
while [ $# -gt 0 ]
do
echo $1
shift
done
#4
6
$0 $1 $2
$ 0 $ 1 $ 2
And so on will contain the script name, then the first and the second line argument.
然后将包含脚本名,然后是第一个和第二个行参数。