Shell Programming and Scripting

hi,

I'm looking for a sed command to delete one word in a string. so i have a file with text like this:

# this is my file
users_here[tab space]u1=usera,userb,userc
users_there[tab space]u2=user1,user2,user3

here is more text
and here is some more text
# no more text here

Now what I'm looking to do is run a command that will search this file, and only delete the text 'usera' and nothing else. any help?

---------- Post updated at 03:44 PM ---------- Previous update was at 03:42 PM ----------

or if there's a ksh script that would do this too, that would work.......or whatever anyone thinks is the easiest way

Code:

sed 's/usera//g' input >output

You don't even want to remove the coma ?

ah, yes i will want to remove the comma, but i also don't want to output the file to a new file. i want to manipulate this file, remove the 'usera,' and exit the file. can this be done?

same as ctsgnb's command..try with -i option in sed..

Code:

sed -i 's/usera,//g' inputfile

hmmmm, i get this error when running that command: sed: illegal option -- i

bump, any help on this and the -i option?????

Code:

printf '1,$s/user,//g\nwq!\n' | ex -s myFile