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awk - how to specify field separator as binary value 0x1
原标题:
  • 时间:2009-11-19 22:00:08
  •  标签:
  • awk

Is it possible to specify the separator field FS in binary for awk?

I have data file with ascii data fields but separated by binary delimiter 0x1.

If it was character 1 it would look like this:

awk -F1  /FIELD/ { print $1 } 

Or in script:

#!/bin/awk -f

BEGIN { FS = "1" }

/FIELD/ { print $1 }

How can I specify FS/F to be 0x1.

最佳回答
#!/bin/awk -f

BEGIN { FS = "x01" }

/FIELD/ { print $1 }

See http://www.gnu.org/manual/gawk/html_node/Escape-Sequences.html.

问题回答
awk -F  x01   /FIELD/ { print $1 } 

works on mawk, gawk, or nawk :

 awk -F 1   { … } 

awks can properly decipher the octal code without needing help from the shell like

 awk -F$ 1   { … } 




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