11
Decimal value 11.
011
Octal 11, decimal value 9.
0x11
Hexadecimal 11, decimal value 17.
gawk 'BEGIN { printf "d, %d\n", 011, 11, 0x11 }'
9, 11, 17
Want to know which character sign is behind hex number 0x26? Solution:
gawk 'BEGIN { printf "%c\n", 0x26 }'
&
To replace all letters, numbers, parenthesis and "_" and "^" by "-" in the file head enter :
nawk '{ gsub(/[a-zA-Z0-9"^""_""("")"]/, "+");print $0;}' head.csv
To use awk to convert a Mac OS file to Unix, at the Unix prompt, enter:
awk '{ gsub("\r", "\n"); print $0;}' macfile.txt > unixfile.txt
To convert a Unix file to Mac OS using awk, at the command line, enter:
awk '{ gsub("\n", "\r"); print $0;}' unixfile.txt > macfile.txt
To replace the remove all lines starting with #, enter :
awk '{if ( substr($0,1,1)!="#") print $0}' list_2mass.tsv
To replace the remove all lines starting with either # or carriage return or SPACE, enter :
awk '{if (substr($0,1,1)!="#"&&substr($0,1,1)!='\n'&&substr($0,1,1)!=" ") print $0}' list_2mass.tsv