05-08-2008
Quote:
Originally Posted by
kartikkumar84@g
Hi people. I am new to shell scripting, so I need a little help. I want to create a script named that takes an argument as a file, Read the input file and look for occurrences of the current username (say abc.xyz) who is executing the script. On finding an occurrence of the username take that line and append it to a file and display a line number and a bracket against the saved line. WITHOUT USING SED OR AWK
for eg: the newly created file should look similar to this:
1) PWD=/home/abc.xyz
2) USER=abc.xyz
3) ... abc.xyz
4)..
i have created a script that is doing just about the same thing.
echo "Precisely Enter the file path";
read filename;
varible=$(whoami);
grep -n $varible $filename >> Userfile;
more Userfile;
but the output of the file is coming as (obviously coz of -n)
9:jhhf=/kjsd/abc.xyz
14:var/spool/mail/abc.xyz
15:/home/abc.xyz
21:/home/abc.xyz
23:abc.xyz
I BASICALLY WANT TO REORDER THE OUTPUT IN A SEQUENCE AS
1)
2)
3)
4)
any help would really appreciated!
is there a command that does that.
hi jim thank you for your reply. but
1) i need to number the lines only in this format 1)... 2)... 3).... Do you think i will need to use a loop or something and then keep appending the occurrences as they come in a new file..also i cant use temp files.
2) also the nl command is only numbering the first uniqe lines in the files. i have a file that has 30 lines repeated 5 times and 'nl' is only numbering the 1st 30 lines for some reason.
cheers...
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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)