basic cat replace string


 
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# 1  
Old 02-16-2007
basic cat replace string

trying to exclude hostnames ending in "s" from a host file:

Code:
# cat hosts
ssef
ssefd
ssefsfff
ssefsfs
# for x in `cat hosts`; do echo "${x/*s}" ;done
ef
efd
fff

#


How can I echo/or not echo only 'ssefsfs' ??

thanks
# 2  
Old 02-16-2007
Code:
 sed -n "/s$/! s/s.*s//p" file

To print lines ending with s
Code:
sed -n "/s$/p" file

To print lines without s at end
Code:
sed -n "/s$/! p" file

# 3  
Old 02-16-2007
Quote:
Originally Posted by anbu23
Code:
 sed -n "/s$/! s/s.*s//p" file

To print lines ending with s
Code:
sed -n "/s$/p" file

To print lines without s at end
Code:
sed -n "/s$/! p" file

thanks, exactly what i need
# 4  
Old 02-19-2007
with awk,

Code:
awk '{ if( substr($0, length, 1) !~ /s/ ) { print } }'  filename

# 5  
Old 02-19-2007
Erm.... grep Smilie

Code:
 grep '[^s]$' hosts

Cheers
ZB
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