08-30-2009
command to replace the entire line from the key point
Hi everyone
I am new to Unix. I got stuck up by small issue.
I have text file something like this
abc 'xyz' '5'
lmn 'pqr' '7'
i want to replace the abc 'xyz' '5' to abc 'xyz' '6'
but i have a key as 'xyz' based on this key i want to do that.
I am not aware of how to use sed command.
i tried something like this but no luck.
sed 's/'xyz' '5'/'xyz' '6'/g' filename
but it is going to
>
>
Mode
I don't want script.I want to use this in a single command.
Note :Key should be matched with 'xyz' and should replace entire line.
Please help me. its urgent.
Thanks
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LEARN ABOUT DEBIAN
readproctitle
readproctitle(8) System Manager's Manual readproctitle(8)
NAME
readproctitle - maintains an automatically rotated log in memory for inspection by ps(1).
readproctitle is available in daemontools 0.75 and above.
SYNOPSIS
readproctitle L D
DESCRIPTION
L consists of any number of arguments. D is one argument consisting of at least five dots.
readproctitle reads data into the end of D, shifting D to the left to make room. This means that the most recent data is visible to
process-listing tools such as ps(1). readproctitle always leaves three dots at the left of D.
For example, if
readproctitle io errors: ....................
reads the data
fatal error xyz
warning abc
then its command-line arguments change to
readproctitle io errors: ... xyz!warning abc!
with a newline character in place of each !. Process-listing tools typically show the newline character as ? or
.
readproctitle exits when it reaches the end of input.
Beware that most implementations of ps(1) have small argument-length limits. These limits apply to the total length of readproctitle L D.
I have not seen a system with a limit below 512 bytes.
SEE ALSO
supervise(8), svc(8), svok(8), svstat(8), svscanboot(8), svscan(8), fghack(8), pgrphack(8), multilog(8), tai64n(8), tai64nlocal(8), setu-
idgid(8), envuidgid(8), envdir(8), softlimit(8), setlock(8), ps(1)
http://cr.yp.to/daemontools.html
http://cr.yp.to/slashcommand.html
readproctitle(8)