delete line in file with sed

forever_49ers · #1 (**permalink**) 09-16-2006

sed "/$titlesearch/d" movielist

will delete any line in the file movielist that matches $titlesearch, but this is only a screen print correct ?

how can I have sed to actually delete the line from the file so that it doesnt appear next time I open the file ?

thanks
Steffen

vgersh99 · #2 (**permalink**) 09-16-2006

Quote:

Originally Posted by forever_49ers

sed "/$titlesearch/d" movielist

will delete any line in the file movielist that matches $titlesearch, but this is only a screen print correct ?

how can I have sed to actually delete the line from the file so that it doesnt appear next time I open the file ?

thanks
Steffen

Code:

(echo "g/${titlesearch}/d"; echo 'wq') | ex -s movielist

forever_49ers · #3 (**permalink**) 09-16-2006

thanks,

you mind explaining your code for me, since I am not quite sure what it does

thanks a lot
Steffen

vgersh99 · #4 (**permalink**) 09-16-2006

Quote:

Originally Posted by forever_49ers

thanks,

you mind explaining your code for me, since I am not quite sure what it does

thanks a lot
Steffen

it feeds 2 lines into the 'ex' utility:

Code:

# this line does the 'delete'
"g/${titlesearch}/d"
AND
# this line 'Writes' the file to disk and 'Quits' editing the file
'wq'

'man ex' for more options

forever_49ers · #5 (**permalink**) 09-19-2006

that did not work.

ex: command not found

Steffen

anbu23 · #6 (**permalink**) 09-19-2006

sed "/$titlesearch/d" movielist >tmp
mv tmp movielist

forever_49ers · #7 (**permalink**) 09-19-2006

thats way better, thanks

Steffen

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