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i want to extract a word from a sentence in bash script .it uses both coma and space as separators.
ex:- date=crossed 122 name=foo , userid=234567 , sessionid=2233445axdfg5209 associd=2
I have above sentence in which the interesting part is name=foo .the key name is always same but the string foo may vary. also other parameters may or may not be there .
i need to extract above key value pair. so output would be :
name=foo
what is the best way to do it in shell script?
thanks!
699
Using the cut Command Specifying the character index isn't the only way to extract a substring. You can also use the -d and -f flags to extract a string by specifying characters to split on. The -d flag lets you specify the delimiter to split on while -f lets you choose which substring of the split to choose.
bash [filename] runs the commands saved in a file. $@ refers to all of a shell script's command-line arguments. $1 , $2 , etc., refer to the first command-line argument, the second command-line argument, etc. Place variables in quotes if the values might have spaces in them.
grep is useful here:
grep -o 'name=[^ ,]\+'
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