循环对象作为BASH输入shell脚本 [英] looping object as inputs in BASH, SHELL script

问题描述

具有相同名称的多个文件 grid_200001.grb2.nc 只有一个部件发生变化，那就是每月 grid_200010.grb2.nc 。我想同时使用它们作为输入文件的

我所希望达到的一个例子是

  FNAME =grid_
一年=2010
一个月=01 02 03 04 05 06 07 08 09 10
EXT =GRB2
最终=NC为（（Y = $一年; Y＆LT; = $一年; Y ++））;
做
    在$ m月
    做    IFILE = $ FNAME $ Y $ M，$分机$结束    ＆GT;＆GT;合并$ ifile的$ ifile的... OFILE
 

所需的命令的例子，我想有是

 ＆GT;＆GT;合并grid_200001.grb2.nc grid_200002.grb2.nc .... grid_200012.grb2.nc OFILE
 

我想我所有可用的文件，在同一时间

输入文件输入

解决方案

  FNAME =grid_
年=（{} 2000..2010）
个月=（01 02 03 04 05 06 07 08 09 10）##（{01..10}）应该是相同的
EXT =GRB2
最终=NC禁用了javascript -s extglob
IFS ='|' EVAL'模式=$ {fname}文件@（$ {年[*]}）@（$ {个月[*]}）。$ {EXT} $ {}到底
回声模式= $ {}模式##的好奇心。
文件=（$模式）##路径扩展是bash中排序。合并$ {文件[@]}OFILE
 

multiple files with the same name grid_200001.grb2.nc with only one components changing and that is the month grid_200010.grb2.nc. I would like to use them all simultaneously as input files

An example of what I am hoping to achieve is

fname="grid_"
year="2010"
month="01 02 03 04 05 06 07 08 09 10"
ext="grb2"
end="nc"

for((y=$year;y<=$year;y++));
do
    for m in $month
    do

    ifile=$fname$y$m.$ext.$end

    >>merge $ifile $ifile ... ofile 

example of the desired command i would like to have is

 >> merge grid_200001.grb2.nc grid_200002.grb2.nc ....grid_200012.grb2.nc ofile

I would like all the files i have available as input files inputs at the same time

解决方案

fname="grid_"
years=({2000..2010})
months=(01 02 03 04 05 06 07 08 09 10)  ## ({01..10}) should be the same
ext="grb2"
end="nc"

shopt -s extglob
IFS='|' eval 'pattern="${fname}@(${years[*]})@(${months[*]}).${ext}.${end}"'
echo "pattern = ${pattern}"  ## for curiosity.
files=($pattern)  ## pathname expansion is sorted in Bash.

merge "${files[@]}" ofile

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