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Read value of a file, remove first 2 chars and put this value in a variable

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# 1  
Old 07-05-2012
Read value of a file, remove first 2 chars and put this value in a variable
Hi i have need of read a file value with cat command and remove first 2character for example cat /sys/class/rtc/day

0x12

Remove char

12

And put this value in a variable

is possible with a script thanks for help
# 2  
Old 07-05-2012
Code:
read VAR < /sys/class/rtc/day
VAR=${VAR:2}

# 3  
Old 07-05-2012
Or

Code:
VAR=${VAR#??}

# 4  
Old 07-05-2012
Or
Code:
IFS=x read dummy VAR < /sys/class/rtc/day

# 5  
Old 07-06-2012
ok i try

---------- Post updated at 04:44 AM ---------- Previous update was at 02:56 AM ----------

i have a problem because i not have a file.
But i have a result of a command for example:

root@freescale ~$ i2cget -f -y 0 0x51 8
0x12

how can take this value?

thanks
# 6  
Old 07-06-2012
Code:
var=$(i2cget -f -y 0 0x51 8|cut -c 3-)

# 7  
Old 07-06-2012
PROBABLY cut -c 2- ?
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