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Shell Programming and Scripting

Find and change flag "Yes to No" or "No to Yes"

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Top Forums Shell Programming and Scripting Find and change flag "Yes to No" or "No to Yes"
# 8  
Old 03-31-2010
jim mcnamara idea seems to work if we add a quote and put the field separator back to ":".

Code:
awk -F ':' '{ if($1=="cc" && $3=="no") { $3="yes"}; OFS=":"; print $0}' inputfile > outputfile

aa:11:yes
bb:22:yes
cc:33:yes
dd:44:no
ee:55:yes

# 9  
Old 03-31-2010
the inputfile is the same that output. The file will be rewritable. I wanna edit the line, change the Yes to No or No to Yes and save.

ResultNow: it find the name, changes but dont save the file.
# 10  
Old 03-31-2010
use -i option in perl.

Code:
perl -i -wlanF'\:' -e '$F[2] =~ s/yes/no/i or $F[2] =~ s/no/yes/i if $F[0] eq "cc"  ;$"=":" ;  print "@F" ; '  infile.txt

and then you will find that infile.txt had been changed.

SmilieSmilieSmilie

BR
# 11  
Old 03-31-2010
Quote:
Originally Posted by ahmad.diab
use -i option in perl.

Code:
perl -i -wlanF'\:' -e '$F[2] =~ s/yes/no/i or $F[2] =~ s/no/yes/i if $F[0] eq "cc"  ;$"=":" ;  print "@F" ; '  infile.txt

and then you will find that infile.txt had been changed.

SmilieSmilieSmilie

BR

I dont want to give the cc from code. The cc must be a variable, like $name. If $name exists, then find the line that $name is and edit & save.
# 12  
Old 03-31-2010
Just for the fun of it, we can use the old unix editor "ed".

Code:
ed filename <<EOF
/^cc:
s/no/yes/
w
q
EOF

# 13  
Old 03-31-2010
easy:-


Code:
echo "Kindly insert the name:- "
read name
perl -i -wlanF'\:' -e '$F[2] =~ s/yes/no/i or $F[2] =~ s/no/yes/i if $F[0] eq "'$name'"  ;$"=":" ;  print "@F" ; ' infile.txt

SmilieSmilieSmilie

BR
# 14  
Old 03-31-2010
Quote:
Originally Posted by methyl
Just for the fun of it, we can use the old unix editor "ed".

Code:
ed filename <<EOF
/^cc:
s/no/yes/
w
q
EOF


Code:
ed $c <<EOF
/^$name:
s/No/Yes/
w
q

/v12.sh: line 439: warning: here-document at line 291 delimited by end-of-file (wanted `EOF')
/v12.sh: line 440: syntax error: unexpected end of file
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