SHELL – 第6页 – Adamhuan's Data Center

SHELL：某个数值是否在列表之中？

代码：

[root@oracle-cluster-3 shell]# cat match_list.sh 
list_a="2 3 5 67 90"
current_num=91
after_all=108

is_in="no"

for list_item in $list_a
do

  #echo "current in list is: [$list_item]"

  if [ $list_item -gt $current_num ]
  then
    is_in="yes"
  fi

  #echo ""

done

echo "current num is: [$current_num]"
echo "does current num in the list? [$is_in]"
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]# sh match_list.sh 
current num is: [91]
does current num in the list? [no]
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]#

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[root@oracle-cluster-3 shell]# cat match_list.sh

list_a="2 3 5 67 90"

current_num=91

after_all=108

is_in="no"

for list_item in $list_a

do

#echo "current in list is: [$list_item]"

if [ $list_item -gt $current_num ]

then

is_in="yes"

fi

#echo ""

done

echo "current num is: [$current_num]"

echo "does current num in the list? [$is_in]"

[root@oracle-cluster-3 shell]#

[root@oracle-cluster-3 shell]# sh match_list.sh

current num is: [91]

does current num in the list? [no]

[root@oracle-cluster-3 shell]#

——————————————
Done。[……]

SHELL：字典

代码：

[root@oracle-cluster-3 shell]# cat do_dict.sh 
declare -A dict_me
dict_me=([count]="^Count" [query_sample]="^Query sample")
echo ${!dict_me[*]}
echo ${dict_me[*]}
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]# sh do_dict.sh 
count query_sample
^Count ^Query sample
[root@oracle-cluster-3 shell]#

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[root@oracle-cluster-3 shell]# cat do_dict.sh

declare -A dict_me

dict_me=([count]="^Count" [query_sample]="^Query sample")

echo ${!dict_me[*]}

echo ${dict_me[*]}

[root@oracle-cluster-3 shell]#

[root@oracle-cluster-3 shell]# sh do_dict.sh

count query_sample

^Count ^Query sample

[root@oracle-cluster-3 shell]#

——————————————————————
DONE.[……]

SHELL：动态生成数组并计算区间

代码：

[root@oracle-cluster-3 shell]# cat change_list.sh 

original_list=(`cat -n /software/main0101.log | grep "__" | awk '{print $1}'`)

loop_edge=`echo ${#original_list[@]}`

# test

#echo $original_list
#echo ${original_list[1]}

for((i=0;i<$loop_edge;i++))
do
  begin_index=$i
  end_index=$(($i+1))

  begin_num=`echo ${original_list[$begin_index]}`
  end_num=`echo ${original_list[$end_index]}`

  echo "range index is: $begin_index --> $end_index"
  echo "range is: $begin_num --> $end_num"

  echo ""

done
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]# sh change_list.sh 
range index is: 0 --> 1
range is: 7 --> 35

range index is: 1 --> 2
range is: 35 --> 54

range index is: 2 --> 3
range is: 54 --> 94

range index is: 3 --> 4
range is: 94 --> 126

range index is: 4 --> 5
range is: 126 --> 165

range index is: 5 --> 6
range is: 165 --> 213

range index is: 6 --> 7
range is: 213 --> 230

range index is: 7 --> 8
range is: 230 --> 259

range index is: 8 --> 9
range is: 259 --> 281

range index is: 9 --> 10
range is: 281 --> 

[root@oracle-cluster-3 shell]#

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[root@oracle-cluster-3 shell]# cat change_list.sh

original_list=(`cat -n /software/main0101.log | grep "__" | awk '{print $1}'`)

loop_edge=`echo ${#original_list[@]}`

# test

#echo $original_list

#echo ${original_list[1]}

for((i=0;i<$loop_edge;i++))

do

begin_index=$i

end_index=$(($i+1))

begin_num=`echo ${original_list[$begin_index]}`

end_num=`echo ${original_list[$end_index]}`

echo "range index is: $begin_index --> $end_index"

echo "range is: $begin_num --> $end_num"

echo ""

done

[root@oracle-cluster-3 shell]#

[root@oracle-cluster-3 shell]# sh change_list.sh

range index is: 0 --> 1

range is: 7 --> 35

range index is: 1 --> 2

range is: 35 --> 54

range index is: 2 --> 3

range is: 54 --> 94

range index is: 3 --> 4

range is: 94 --> 126

range index is: 4 --> 5

range is: 126 --> 165

range index is: 5 --> 6

range is: 165 --> 213

range index is: 6 --> 7

range is: 213 --> 230

range index is: 7 --> 8

range is: 230 --> 259

range index is: 8 --> 9

range is: 259 --> 281

range index is: 9 --> 10

range is: 281 -->

[root@oracle-cluster-3 shell]#

——————————————
Done。[……]

发表于： 2017年4月25日 2017年4月25日
作者： Adamhuan
分类： RHEL, SHELL
标签： array, bash shell, Linux, Shell, 动态, 数组, 边界
发表评论: SHELL：动态生成数组并计算区间

SHELL：查询数值上限边界

代码如下：

[root@oracle-cluster-3 shell]# cat split_space_gap.sh

file_name="/software/main0101.log"

num_list="3 4 5 6 7 8 19 29 34 56"

current_num="$1"

purpose_num=""

for num_item in $num_list
do
  if [ $current_num -lt $num_item ]
  then
        purpose_num=$num_item
        echo "purpose num is: $purpose_num"
        break
  fi
done
[root@oracle-cluster-3 shell]# 
[root@oracle-cluster-3 shell]# sh split_space_gap.sh 24
purpose num is: 29
[root@oracle-cluster-3 shell]# sh split_space_gap.sh 30
purpose num is: 34
[root@oracle-cluster-3 shell]# sh split_space_gap.sh 35
purpose num is: 56
[root@oracle-cluster-3 shell]#

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[root@oracle-cluster-3 shell]# cat split_space_gap.sh

file_name="/software/main0101.log"

num_list="3 4 5 6 7 8 19 29 34 56"

current_num="$1"

purpose_num=""

for num_item in $num_list

do

if [ $current_num -lt $num_item ]

then

purpose_num=$num_item

echo "purpose num is: $purpose_num"

break

fi

done

[root@oracle-cluster-3 shell]#

[root@oracle-cluster-3 shell]# sh split_space_gap.sh 24

purpose num is: 29

[root@oracle-cluster-3 shell]# sh split_space_gap.sh 30

purpose num is: 34

[root@oracle-cluster-3 shell]# sh split_space_gap.sh 35

purpose num is: 56

[root@oracle-cluster-3 shell]#

——————————
Done。[……]

SHELL：查找某个文本文件中的空行

没有太多可以说的，直接看代码：

[root@oracle-cluster-3 shell]# grep -n '^$' /software/main0101.log 
5:
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[root@oracle-cluster-3 shell]#

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[root@oracle-cluster-3 shell]# grep -n '^$' /software/main0101.log

5:

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[root@oracle-cluster-3 shell]#

————————————
Done。[……]