awk would be best.
This isn't exactly what you asked for, but I think it's what you want. If you really don't want the other entries (the ones that have no /home/inst for a home dir), then remove the "{print}".
hi! I am a newbee. I would really appreciate if you can answer the following question:
I have a huge data file, 214MB with several coloumns. I need to delete the very last line of the file. Everything I know takes a lot of time to do it ( because I have to open the file in an editor or run a... (3 Replies)
Hi,
I am in a situation wherein am getting file file certailn values
suppose
1u56979hhghhklklkkkjkjkjk 0 0 0
The file will have values like above only.
I need to add another field of NULL value(of length 9) at the end of first column i.e.
It should like this after editing:... (4 Replies)
Hi,
My ubuntu flavor always create temporary files having filename followed by ~ on editing. For eg: if I am editing a file called "sip.c", automatically a temporary (bkup) file is getting created with the name "sip.c~". How to avoid this file creation? (7 Replies)
I have created a file with vi -x (file name) this is encrypted file when i again open this file it ask me to enter a password before editing it.Can i remove this password but i don't want to delete a file how to do this.
Thanks (0 Replies)
Hi all,
I have a file with following contents
# rad124
# radkus
# raddebug
# radtrace
I could like to remove the # and space present before the key word "rad".
Any ways to do this using "subsitution method(:%s/old/new/g)" will be hepful. (1 Reply)
i am writing a script to edit entries in a file. what command will edit a specific file?
ex: echo) "what number would you like to change
read "number"
this is where I am stuck. what command will edit my specific file? (3 Replies)
Hi,
I am having a file which is fix length and comma seperated. And I want to replace values for one column.
I am reading file line by line in variable $LINE and then replacing the string.
Problem is after changing value and writing new file temp5.txt, formating of original file is getting... (8 Replies)
I have a text file that has data like:
Data "12345#22"
Fred
ID 12345
Age 45
Wilma
Dino
Data "123#22"
Tarzan
ID 123
Age 33
Jane
I need to figure out a way of adding 1,000,000 to the specific lines (always same format) in the file, so it becomes:
Data "1012345#22"
Fred
ID... (16 Replies)
I need edit some characters in a file, but without creating intermediatory file and also one liner.
I tried:
cat foo.txt | sed '/s/abc//g' > foo.txt
cat foo.txt | sed '/s/abc//g' >> foo.txt
First one is making foo.txt to zero byte, while second one is appending my desired output... (4 Replies)
Dear Guru's
I'm using Putty and want to edit a file. I know we generally use vi editor to do it. As I'm not good in using vi editor, I want to convert the vi into something like text pad. Is there any option in Putty to do the same ? Thanks for your response.
Srini (6 Replies)
Discussion started by: thummi9090
6 Replies
LEARN ABOUT REDHAT
fgetpwent
FGETPWENT(3) Linux Programmer's Manual FGETPWENT(3)NAME
fgetpwent - get password file entry
SYNOPSIS
#include <pwd.h>
#include <stdio.h>
#include <sys/types.h>
struct passwd *fgetpwent(FILE *stream);
DESCRIPTION
The fgetpwent() function returns a pointer to a structure containing the broken out fields of a line in the file stream. The first time it
is called it returns the first entry; thereafter, it returns successive entries. The file stream must have the same format as /etc/passwd.
The passwd structure is defined in <pwd.h> as follows:
struct passwd {
char *pw_name; /* user name */
char *pw_passwd; /* user password */
uid_t pw_uid; /* user id */
gid_t pw_gid; /* group id */
char *pw_gecos; /* real name */
char *pw_dir; /* home directory */
char *pw_shell; /* shell program */
};
RETURN VALUE
The fgetpwent() function returns the passwd structure, or NULL if there are no more entries or an error occurs.
ERRORS
ENOMEM Insufficient memory to allocate passwd structure.
FILES
/etc/passwd
password database file
CONFORMING TO
SVID 3
SEE ALSO getpwnam(3), getpwuid(3), getpwent(3), setpwent(3), endpwent(3), getpw(3), putpwent(3), passwd(5)GNU 1996-05-17 FGETPWENT(3)