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11-20-2008
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string manipulation issue
I have myMethod that gives me available,used,free disk space in KB. I parse the used disk space using awk. That gives me something like 830,016. I want the output to be 830016 so that I can add 100000 to it. In other words I would like to use used_space variable in numeric calculations (using expr). Code:
.....
myMethod
used_space="`myMethod | grep sum | awk -F' ' '{print $3}'`"
echo $used_space
echo ${used_space/,/}
But the last line above gives me error: Code:
sum 1,977,920 830,016 1,147,904 830,016 ./test.sh: bad substitution What can I do? If I do the same thing on command line it works fine! Code:
bash-3.00# export abc=830,123
bash-3.00# echo ${abc/,/}
830123
bash-3.00#
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11-20-2008
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Quote:
Code:
used_space=`myMethod | awk '/sum/{gsub(/,/,"");print $3}'`
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11-20-2008
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I guess you havn't specify the shell in script. (Do not remember how that line is named..) First line in script Code:
#! /usr/bin/bash for example. In bash it works fine, but I have tried it in ksh: Code:
> ec $used_space
830,016
> ec ${used_space/,/}
ksh: ${used_space/,/}: bad substitution
>
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11-21-2008
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I am sorry, I am still having issues. I changed the code as follows: Code:
myMethod
used=`myMethod | awk '{gsub(/,/,""); print $3}'`
echo $used
Now I get a different error. If it is not clear what could be wrong, any pointers for debugging awk would be appreciated. Code:
bash-3.00# ./test.sh sum 1,977,920 795,648 1,182,272 awk: syntax error near line 1 awk: illegal statement near line 1 bash-3.00# stty: : I/O error The first line of the script is: Code:
#!/bin/sh |
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