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pattern matching w/ unexpected characters

 
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# 1  
Old 06-22-2009
pattern matching w/ unexpected characters
how do i check if the first character is a parenthese in pattern matching?

if [[ $a == (* ]] obviously doesnt work. How do I use it to compare so it doesnt try to use it to group.
# 2  
Old 06-22-2009
one way to skin that cat:
Code:
#!/bin/ksh
set -x

a='(abc'

if [[ "${a%%${a##?}}" = '(' ]]; then
   echo '( - first char'
fi

# 3  
Old 06-22-2009
what about if the string assigned to the variable isn't a constant length? i.e. the string assigned to that variable changes.
# 4  
Old 06-22-2009
Quote:
Originally Posted by questionasker
what about if the string assigned to the variable isn't a constant length? i.e. the string assigned to that variable changes.
it'd not bite if you try.
# 5  
Old 06-22-2009
Quote:
Originally Posted by vgersh99
it'd not bite if you try.

i'd love to, im just at home Smilie Something for tomorrow i suppose.
# 6  
Old 06-22-2009
Code:
# a="(dsfsf"
# case $a in \(* ) echo ok;; esac
ok

awk
Code:
echo $a | awk '{print /^\(/?"ok":"not ok"}'

 
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