Bash script - remove few item from array

Question

I have created shell script to read a file and store elements into array.

Now i want to remove some elements from array which has </ in it.

my xml file:

<Execution_Stats>
<Total_Executions>1</Total_Executions>  
<Total_Errors>0</Total_Errors>
<SQL_Analysis>
    <NOT_COMPARED>1</NOT_COMPARED>
    <MATCHED>0</MATCHED>
    <NOT_MATCHED>0</NOT_MATCHED>
    <ERROR>0</ERROR>
</SQL_Analysis>
<Data_Analysis>
    <NOT_COMPARED>0</NOT_COMPARED>
    <MATCHED>0</MATCHED>
    <NOT_MATCHED>1</NOT_MATCHED>
    <ERROR>0</ERROR>
</Data_Analysis>
<Graph_Analysis>
    <NOT_COMPARED>1</NOT_COMPARED>
    <MATCHED>0</MATCHED>
    <NOT_MATCHED>0</NOT_MATCHED>
    <ERROR>0</ERROR>
</Graph_Analysis>
<Excel_Analysis>
    <NOT_COMPARED>1</NOT_COMPARED>
    <MATCHED>0</MATCHED>
    <NOT_MATCHED>0</NOT_MATCHED>
    <ERROR>0</ERROR>
</Excel_Analysis>
<Pdf_Analysis>
    <NOT_COMPARED>1</NOT_COMPARED>
    <MATCHED>0</MATCHED>
    <NOT_MATCHED>0</NOT_MATCHED>
    <ERROR>0</ERROR>
</Pdf_Analysis>
</Execution_Stats>

shell script:

#!/bin/bash

 txt=($(grep  '_Analysis' "results.xml"))

 unset(txt[1])
 unset(txt[3])
 unset(txt[5])
 unset(txt[7])
 unset(txt[9])

but i am not getting result as i expected.

I would like to see output like

txt[0]=SQL_Analysis
txt[1]=Data_Analysis
txt[2]=Graph_Analysis
txt[3]=Excel_Analysis
txt[4]=PDF_Analysis

but getting

txt[0]=SQL_Analysis
txt[1]=
txt[2]=Data_Analysis
txt[3]=
txt[4]=Graph_Analysis
txt[5]=
txt[6]=Excel_Analysis
txt[7]=
txt[8]=PDF_Analysis
txt[9]=

Or if there is a way where i cannot select any text which start with </ from the file?

Use an XML parser to parse XML.

miken32
– miken32

2017-06-16 16:55:37 +00:00
Commented Jun 16, 2017 at 16:55 — miken32
– miken32, Commented Jun 16, 2017 at 16:55
You could try grep '<[A-Z].*_Analysis' results.xml

janos
– janos

2017-06-16 16:57:40 +00:00
Commented Jun 16, 2017 at 16:57 — janos
– janos, Commented Jun 16, 2017 at 16:57

stobiewankenobi · Accepted Answer · 2017-06-16 18:25:06Z

1

Your syntax is wrong to unset a variable. I'm not even sure how your code is executing as what you have results in a syntax error for me. Your code:

#!/bin/bash

txt=($(grep  '_Analysis' "test.xml"))

unset(txt[1])
unset(txt[3])
unset(txt[5])
unset(txt[7])
unset(txt[9])

Output:

test.sh: line 5: syntax error near unexpected token `txt[1]'
test.sh: line 5: `unset(txt[1])'

See below:

#!/bin/bash

txt=($(grep  '_Analysis' "test.xml"))

unset 'txt[1]'
unset 'txt[3]'
unset 'txt[5]'
unset 'txt[7]'
unset 'txt[9]'

for key in ${txt[@]}; do
    echo $key
done

Which gives me:

dumbledore@ansible1a [OPS]:~ > bash test.sh
<SQL_Analysis>
<Data_Analysis>
<Graph_Analysis>
<Excel_Analysis>
<Pdf_Analysis>

answered Jun 16, 2017 at 18:25

stobiewankenobi

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