10 More Discussions You Might Find Interesting
1. UNIX for Advanced & Expert Users
did a big mistake, changing root entry of /etc/passwd to
root:x:0:0:root:/root:/usr/bin/tmux split-window -v \; attach
as expected, now I can't login as root anymore. sudo ed /etc/passwd etc. doesn't work.
Any idea?
Use code tags to increase readability and follow the rules. (4 Replies)
Discussion started by: dodona
4 Replies
2. UNIX for Dummies Questions & Answers
Hi Folks,
While transferring file from FTP software like Filezilla the files gets corrupted.
Is there any way I can check if the recently transferred file is in ASCII and not corrupted. I have tried using file -i filename command which does tell if the file character set is ASCII or binary... (6 Replies)
Discussion started by: Khan28
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3. UNIX for Advanced & Expert Users
I running Linux Mint Debian Edition tracking testing and have started a cron job that will send something to the root mailbox. Mint has heirloom and exim4 installed. However, mail was getting nothing. I realized that in /etc/aliases, there was a line
root: mintSince you can't log into the mint... (0 Replies)
Discussion started by: Narnie
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4. Red Hat
I accidentally changed root shell from /bin/bash to bash in /etc/password, then logged out from root. Now I can't login as root and got "No shell" error, although I have root password. "su -f -s /bin/bash" command does NOT work. There is no GUI interface for this system.
My question: Do I have... (7 Replies)
Discussion started by: aixlover
7 Replies
5. UNIX for Dummies Questions & Answers
Maybe a stupid question, but I'd like to know others opinions. I have more than 250 servers (mostly domU) and now I'm redirecting root mail to a local account on every vps. To tell U the truth I never read them, but I don't know if I'm making a mistake. My question is simple, what should you do... (1 Reply)
Discussion started by: iga3725
1 Replies
6. Solaris
I was installing sfw sudo and its dependencies (libiconv, libintl, libgcc)on Solaris 10, running on an x86 x4200 and I corrupted some PAM library files. It's a standard Solaris 10 base install, with some added software & libraries from a vendor.
I am on console trying to get root access back,... (1 Reply)
Discussion started by: Mariognarly
1 Replies
7. SuSE
I want to send an email for SLES server. But when I try with "mail" command it gives me "no mail for root" error. I checked /var/mail/ directory and nothing in there. Any ideas. Thanks (1 Reply)
Discussion started by: s_linux
1 Replies
8. HP-UX
When I want to see mail after login as root. The screen goes crazy showing lots lots lots of Email.
Is there anyway I can delete some old Email?? How? Thanks (1 Reply)
Discussion started by: ldaliosmane
1 Replies
9. UNIX for Advanced & Expert Users
Hi ,
Whenever I try to send mails with attachments to external email Id's the attachment is not encoded properly which appears along with body (text) of the mail.
The attachement is always getting corrupted. Can anyone please suggest a solution.
Regards,
Sandipan (1 Reply)
Discussion started by: Sandipan
1 Replies
10. HP-UX
Hello!
Do you know the meaning of...
"crw-rw---- 1 informix informix 64 0x020001 Jan 21 2004 rifxroot"
I don't know what the first "c" means. Furthermor, if I try to copy this file (rifxroot) it appears a message:
"cp: cannot open rifxroot: No such device or address"
I don't... (1 Reply)
Discussion started by: kaugrs
1 Replies
AT(1) General Commands Manual AT(1)
NAME
at - execute commands at a later time
SYNOPSIS
at [ -c ] [ -s ] [ -m ] time [ day ] [ file ]
DESCRIPTION
At spools away a copy of the named file to be used as input to sh(1) or csh(1). If the -c flag (for (csh(1))) or the -s flag (for (sh(1)))
is specified, then that shell will be used to execute the job; if no shell is specified, the current environment shell is used. If no file
name is specified, at prompts for commands from standard input until a ^D is typed.
If the -m flag is specified, mail will be sent to the user after the job has been run. If errors occur during execution of the job, then a
copy of the error diagnostics will be sent to the user. If no errors occur, then a short message is sent informing the user that no errors
occurred.
The format of the spool file is as follows: A four line header that includes the owner of the job, the name of the job, the shell used to
run the job, and whether mail will be set after the job is executed. The header is followed by a cd command to the current directory and a
umask command to set the modes on any files created by the job. Then at copies all relevant environment variables to the spool file. When
the script is run, it uses the user and group ID of the creator of the spool file.
The time is 1 to 4 digits, with an optional following `A', `P', `N' or `M' for AM, PM, noon or midnight. One and two digit numbers are
taken to be hours, three and four digits to be hours and minutes. If no letters follow the digits, a 24 hour clock time is understood.
The optional day is either (1) a month name followed by a day number, or (2) a day of the week; if the word `week' follows, invocation is
moved seven days further off. Names of months and days may be recognizably truncated. Examples of legitimate commands are
at 8am jan 24
at -c -m 1530 fr week
at -s -m 1200n week
At programs are executed by periodic execution of the command /usr/libexec/atrun from cron(8). The granularity of at depends upon the how
often atrun is executed.
Error output is lost unless redirected or the -m flag is requested, in which case a copy of the errors is sent to the user via mail(1).
FILES
/usr/spool/at spooling area
/usr/spool/at/yy.ddd.hhhh.* job file
/usr/spool/at/past directory where jobs are executed from
/usr/spool/at/lasttimedone last time atrun was run
/usr/libexec/atrun executor (run by cron(8))
SEE ALSO
atq(1), atrm(1), calendar(1), sleep(1), cron(8)
DIAGNOSTICS
Complains about various syntax errors and times out of range.
BUGS
Due to the granularity of the execution of /usr/libexec/atrun, there may be bugs in scheduling things almost exactly 24 hours into the
future.
If the system crashes, mail is not sent to the user informing them that the job was not completed.
Sometimes old spool files are not removed from the directory /usr/spool/at/past. This is usually due to a system crash, and requires that
they be removed by hand.
4th Berkeley Distribution October 21, 1996 AT(1)