The “cut” command is great for splitting a string on a single character and extracting specific fields. But it will not work with multi-character delimiters. Here’s a simple replacement using awk that will get the job done. Let’s assume you have a string like:
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arg1=a&arg2=b&arg3=c |
We could extract the value of “arg3” using cut with:
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echo "arg1=a&arg2=b&arg3=c" | cut -f 3 -d "&" | cut -f 2 -d '=' |
But this assumes that there are always the same number of proceeding args:
Now lets do it with awk:
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awk -F'arg3=' '{print $2}' |
But what if the args are in different order? The we can use sed:
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sed 's/\(.*\)arg3=\(.*\)/\2/g' |
One Response
Your cut example is messed up. The delimiter is “&” and the field is 3. Same for “=” and 2.