Hello,
I have afile which begins with a few urls on multiple lines and then there is listing of some information on separate lines.
The listing begins with the word Name on a given line followed by teh actual list.
I want to count the number of lines in this file after the line having... (6 Replies)
Hi All,
I have to count the number of occurences of the character " ; " in a given line.
I had used the following awk command to achieve the same
echo $KOP.dat|awk '{split($1,my,";"); for(i in my)c++ }END{print c-1}'
My file KOP.dat had the following data
... (1 Reply)
Hi all,
I use bash shell and I have a problem with wc.
I would like to determine the number of lines in a file so I do
wc -l filename
but I don't want to get the filename again
I just would like to have the number of lines and use it in a variable.
Can anybody help?
Thank you, (7 Replies)
say i've got a text file with >10million sequences:
ssss
ssss
tttttt
uuuuuu
uuuuuu
uuuuuu
...
I'd like to convert the file so that the output will report the number of occurence right by each sequence:
2 ssss
2 ssss
1 tttttt
3 uuuuuu
3 uuuuuu
3 uuuuuu
.... (3 Replies)
Hi all
I want to count total numbers of sentences separated by fullstop (.) in different files under a directory at one go. Any help is appreciated. (3 Replies)
Hello Everyone.
I am trying to display contains of a file from a specific line to a specific line(let say, from line number 3 to line number 5). For this I got the shell script as shown below:
if ; then
if ; then
tail +$1 $3 | head -n $2
else
... (5 Replies)
Hello,
I have been working on Awk/sed one liner which counts the number of occurrences of '|' in pipe separated lines of file and delete the line from files if count exceeds "17".
i.e need to get records having exact 17 pipe separated fields(no more or less)
currently i have below :
awk... (1 Reply)
So I have several files (35000, to be exact) in the format rmsd_protein_*.dat each with 2 columns and 35000 rows.
I would like to count how many values in the second column are less than 3 for each file, and output it into a new file so that it ultimately appears as:
1 14057
2 ... (12 Replies)
I'm trying to create a minimal, crude keylogger for X using only a shell script. I was quickly stumped: Why do these two commands entered in a terminal emulator produce output when I type...
$ xinput test 6 | grep press
$ xinput test 6 | awk '{print $3}'
...but this command produces no... (13 Replies)
Discussion started by: DevuanFan
13 Replies
LEARN ABOUT REDHAT
qmail-pw2u
qmail-pw2u(8) System Manager's Manual qmail-pw2u(8)NAME
qmail-pw2u - build address assignments from a passwd file
SYNOPSIS
qmail-pw2u [ -/ohHuUC ] [ -cchar ]
DESCRIPTION
qmail-pw2u reads a V7-format passwd file from standard input and prints a qmail-users-format assignment file.
A V7-format passwd file is a series of lines. Each line has the format
user:password:uid:gid:gecos:home:shell
where user is an account name, uid and gid are the user id and group id of that account, and home is the account's home directory. pass-
word, gecos, and shell are ignored by qmail-pw2u.
If you put the output of qmail-pw2u into /var/lib/qmail/users/assign, and then run qmail-newu, qmail-lspawn will obey the assignments
printed by qmail-pw2u. WARNING: After changing any users, uids, gids, or home directories in your passwd file, you must run qmail-pw2u and
qmail-newu again if you want qmail-lspawn to see the changes.
RULES
By default, qmail-pw2u follows the same rules as qmail-getpw. It skips user if (1) uid is zero, (2) home does not exist, (3) user does not
own home, or (4) user contains uppercase letters. It then gives each remaining user control over the basic user address and all addresses
of the form user-anything. A catch-all user, alias, controls all other addresses.
You may change these rules by setting up files in /var/lib/qmail/users:
include
Allowed users, one per line. If include exists, and user is not listed in include, user is ignored.
exclude
Ignored users, one per line. If exclude exists, and user is listed in exclude, user is ignored.
mailnames
Replacement names for users. Each line has the form
user:mailname1:mailname2:...
The addresses mailname1 and mailname1-ext and mailname2 and so on will be delivered to user.
WARNING: The addresses user and user-ext will not be delivered to user unless user is listed as one of the mailnames.
A line in mailnames is silently ignored if the user does not exist.
subusers
Extra addresses. Each line has the form
sub:user:pre:
sub will be handled by home/.qmail-pre, where home is user's home directory; sub-ext will be handled by home/.qmail-pre-ext.
append Extra assignments, printed at the end of qmail-pw2u's output.
OPTIONS -o (Default.) Skip user if home does not exist (or is not visible to qmail-pw2u). Skip user if home is not owned by user.
-h Stop if home does not exist. This is appropriate if every user is supposed to have a home directory. Skip user if home is not
owned by user.
-H Do not check the existence or ownership of home.
-U (Default.) Skip user if there are any uppercase letters in user.
-u Allow uppercase letters in user.
-cchar Use char as the user-extension delimiter in place of -.
-C Disable the user-extension mechanism.
-/ Use home/.qmail-/... instead of home/.qmail-...
SEE ALSO qmail-users(5), qmail-lspawn(8), qmail-newu(8), qmail-getpw(8)qmail-pw2u(8)