Shell Programming and Scripting

This is true, so if that isn't available I would use ed.

Code:

ed -s /target/file <<EOF
g/search/s/search/replace/g
w
q
EOF

This is a pretty simple example and you can loop through your target files. The reason for the two search fields in the above example is so you can search for something on a line and then search/replace something else on that particular line. Much more detail in Ch25 of Amazon.com: Expert Shell Scripting (Expert's Voice in Open Source): Ron Peters: Books

when i give sed -i. It throws an error

$sed -i -e s/see/saw/g *.txt

sed: illegal option -- i


Thanks

see the above discussion.

whats wrong with this code..please

Code:

#!/bin/sh
allone=`ls *.txt`
echo $allone
for i in ${allone}
do
echo $i
sed -s /${i} <<EOF
g/see/s/see/saw/g
w
q
EOF
done

i have two text files in which i have 'see' and i want to make it 'saw'

the scripts executes fine but i dont see any replacement done.

Thanks

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---------- Post updated at 03:01 PM ---------- Previous update was at 02:57 PM ----------

Code:

#!/bin/sh

for i in *.txt 
do
  echo $i
  printf 's/see/saw/g\nwq!\n' | ex - "${i}" 
done

Even this was not successful


onetest.sh
r1.txt r2.txt

Substitute pattern match failed
r1.txt
Substitute pattern match failed
r2.txt
Substitute pattern match failed

Is there anything wrong with the command

Thanks

sorry:

Code:

#!/bin/sh

for i in *.txt 
do
  echo $i
  printf '1,$s/see/saw/g\nwq!\n' | ex -s "${i}" 
done