Append contents of pattern space to
file. This action occurs
when the command is encountered rather than when the pattern space is
output. Exactly one space
must separate the w and the filename.
A maximum of ten different files can be opened in a script.
This command will create the file if it does not exist; if the file
exists, its contents will be overwritten each time the script
is executed. Multiple write commands that direct output to the
same file append to the end of the file.
# Store tbl and eqn blocks in a file: /^\.TS/,/^\.TE/w troff_stuff /^\.EQ/,/^\.EN/w troff_stuff