I am attempting to write a korn shell script that does the following, but I am getting errors. I'm new to korn shell scripting and am not sure what I am doing wrong. Please help with example scripts. Thanks.
1) check for day of the week
2) if day of the week is Monday then check for the existence of three files
3) if all three files are not found then loop infinitely until all three are found
4) when found then execute a .sas program
5) else if the day if the week is not Monday then check for the existence of two files
6) if the two files are not found then loop infinitely until both files are found
7) when both files are found execute a .sas program
Here's what I have thus far:
Moderator's Comments:
Please use code tags when posting data and code samples!
Last edited by vgersh99; 01-09-2020 at 12:56 PM..
Reason: code tags, please!
I have a rather big script that i have written in ksh and it is falling over in two places with a 'test argument' error. I know this usually means that the if statement is not correct, but it is fine. I have looked through the rest of the script for any odd brackets or ` marks, but can't see... (2 Replies)
How do I change directories to a path given by input variable in Korn Shell?
e.g. I tired with the Korn Shell below but it doesn't work.
----------------------------------
#!/bin/ksh
echo "Enter folder name: \c"
read folder
cd $folder
----------------------------------
Any help will... (5 Replies)
Hello,
How do I write a korn shell that will rename file with the current date. What I want to do is, I have a file that is re-written every day. But instead, I want to keep a 14 day history of the file. So I want to write a script that will rename the current file with a date attached to the... (2 Replies)
How do I replace a space " " character at a particular position in a line?
e.g. I have a file below
$ cat i2
111 002 A a
33 0011 B c
2222 003 C a
I want all the 1st spaces to be replaced with forward slash "/" and the 3rd spaces to have 5 spaces to get the output below:
111/002... (8 Replies)
Hi all,
I need a Korn Shell script that will go out to all Unix Servers and pull all non humans IDs from them while at the same time produce a file to show which servers we have access to and which ones we don't.
Thanks in advance. (5 Replies)
I'd like a shell-script syntax checker that can detect at least the following errors, and more:
1. Variable $VAR used but VAR has not been defined.
2. Variable VAR defined but never used.
3. Use of unquoted variables which might break external commands e.g. SOMETHING in: value=`grep $SOMETHING... (5 Replies)
Hi,
I am new to this unix scripting, I got a requirement like..
Files with *.XML extension will be generating in a /home/sample/ folder for every 15 mins. I need to monitor those files in that particular folder for every hour.
If no file has been generated in that particular folder for an... (7 Replies)
All,
Can anyone please help me with the below scenario in korn shell script.
Can anyone please give me some hints to proceed on this.
I have a Flat file of the below format.
Input file format:... (1 Reply)
Hi,
I have files in the directory like below which I need to validate if all the required files are present.
A_B_001 of 002_time1.txt
A_B_002 of 002_time1.txt
A_B_001 of 001_time2.txt
Scenarios-
a)If file with 001 of 002_time1 or 002 of 002_time1 is missing in the folder,script should... (6 Replies)
Discussion started by: aneeta13
6 Replies
LEARN ABOUT BSD
at
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)