#11 gawk not working with single quotes

[Sai]

gawk is not working when the pattern is given in single
quotes whereas working with double quotes.

For example:
gawk '{ sum += $1 }; END { print sum }' file
gives output:
gawk: cmd. line:1: '{
gawk: cmd. line:1: ^ invalid char ''' in expression

whereas
gawk "{ sum += $1 }; END { print sum }" file
works fine.

[Nobody/Anonymous]

Logged In: NO

It's not gawk's fault, it's the shell's (if at all). See my
response to your grep-related question.