Filter last word after matching a string

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I am writing a bash script and I need to filter out some hexadecimal value from a return string of a command in bash for example:



hexVal=`mmc extcsd read /dev/mmcblk1 | grep 'Max Enhanced Area Size'`


Will return the value of hexVal as:



Max Enhanced Are Size [MAX_ENH_SIZE_MULT]: 0x000bd8


Now, I need the value of hexVal to be returned as:



0x000bd8





text-processing grep







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  • Are those values always last words in the line?
    – jimmij
    10 mins ago














up vote
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down vote

favorite












I am writing a bash script and I need to filter out some hexadecimal value from a return string of a command in bash for example:



hexVal=`mmc extcsd read /dev/mmcblk1 | grep 'Max Enhanced Area Size'`


Will return the value of hexVal as:



Max Enhanced Are Size [MAX_ENH_SIZE_MULT]: 0x000bd8


Now, I need the value of hexVal to be returned as:



0x000bd8





text-processing grep







share|improve this question









New contributor




Hari is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.



















  • Are those values always last words in the line?
    – jimmij
    10 mins ago












up vote
0
down vote

favorite









up vote
0
down vote

favorite











I am writing a bash script and I need to filter out some hexadecimal value from a return string of a command in bash for example:



hexVal=`mmc extcsd read /dev/mmcblk1 | grep 'Max Enhanced Area Size'`


Will return the value of hexVal as:



Max Enhanced Are Size [MAX_ENH_SIZE_MULT]: 0x000bd8


Now, I need the value of hexVal to be returned as:



0x000bd8





text-processing grep







share|improve this question









New contributor




Hari is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











I am writing a bash script and I need to filter out some hexadecimal value from a return string of a command in bash for example:



hexVal=`mmc extcsd read /dev/mmcblk1 | grep 'Max Enhanced Area Size'`


Will return the value of hexVal as:



Max Enhanced Are Size [MAX_ENH_SIZE_MULT]: 0x000bd8


Now, I need the value of hexVal to be returned as:



0x000bd8





text-processing grep




text-processing grep






share|improve this question









New contributor




Hari is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.











share|improve this question









New contributor




Hari is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.









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edited 4 mins ago









Inian

3,233822




3,233822






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asked 14 mins ago









Hari

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Hari is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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  • Are those values always last words in the line?
    – jimmij
    10 mins ago
















  • Are those values always last words in the line?
    – jimmij
    10 mins ago















Are those values always last words in the line?
– jimmij
10 mins ago




Are those values always last words in the line?
– jimmij
10 mins ago










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Instead of grep, you could use awk as it is more useful in pattern matching and printing out the matched fields



mmc extcsd read /dev/mmcblk1 | awk -F: '$1 ~ "^""Max Enhanced Area Size" print $2 '


You could also remove the leading space in the above result



awk -F: '$1 ~ "^""Max Enhanced Area Size" sub(/^[[:space:]]/,"",$2); print $2 '




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    up vote
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    Instead of grep, you could use awk as it is more useful in pattern matching and printing out the matched fields



    mmc extcsd read /dev/mmcblk1 | awk -F: '$1 ~ "^""Max Enhanced Area Size" print $2 '


    You could also remove the leading space in the above result



    awk -F: '$1 ~ "^""Max Enhanced Area Size" sub(/^[[:space:]]/,"",$2); print $2 '




    share
























      up vote
      0
      down vote













      Instead of grep, you could use awk as it is more useful in pattern matching and printing out the matched fields



      mmc extcsd read /dev/mmcblk1 | awk -F: '$1 ~ "^""Max Enhanced Area Size" print $2 '


      You could also remove the leading space in the above result



      awk -F: '$1 ~ "^""Max Enhanced Area Size" sub(/^[[:space:]]/,"",$2); print $2 '




      share






















        up vote
        0
        down vote










        up vote
        0
        down vote









        Instead of grep, you could use awk as it is more useful in pattern matching and printing out the matched fields



        mmc extcsd read /dev/mmcblk1 | awk -F: '$1 ~ "^""Max Enhanced Area Size" print $2 '


        You could also remove the leading space in the above result



        awk -F: '$1 ~ "^""Max Enhanced Area Size" sub(/^[[:space:]]/,"",$2); print $2 '




        share












        Instead of grep, you could use awk as it is more useful in pattern matching and printing out the matched fields



        mmc extcsd read /dev/mmcblk1 | awk -F: '$1 ~ "^""Max Enhanced Area Size" print $2 '


        You could also remove the leading space in the above result



        awk -F: '$1 ~ "^""Max Enhanced Area Size" sub(/^[[:space:]]/,"",$2); print $2 '





        share











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        answered 7 mins ago









        Inian

        3,233822




        3,233822




















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