05-04-2017
URGENT Reading a file and assessing the syntax shell script URGENT
I am trying to write a shell script which takes an input file as an arguement in the terminal e.g. bash shellscriptname.sh input.txt. I would like for the file to be read line by line each time checking if the .txt file contains certain words or letters(validating the syntax). If the line being read follows the syntax then it should be sent to another file called correct.txt if the syntax is incorrect of the line then it should be sent to incorrect.txt. I have been struggling to get the shell script to read the file and then assess the syntax. Please could someone help
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
I need a help in deleting a line matching a particular pattern in a file using shell script without opening the file. The file is a .c/.cpp file. Is it possible?
Thanks (6 Replies)
Discussion started by: naan
6 Replies
2. Shell Programming and Scripting
Hi,
I have a file whose content and format at places is as given below.
print
coloumn ....
coloumn ....
coloumn ....
skip 1 line
print
coloumn ...
skip 1 line
I need to select the following :
print
coloumn ....
coloumn ....
coloumn... (2 Replies)
Discussion started by: jisha
2 Replies
3. Shell Programming and Scripting
Hi,
I want to extract block of data from flat file.
the data will be like this
start of log
One
two
three
end of log
i want all data between start of log to end of log i.e One
two
three to be copied to another file.
This particular block may appear multiple times in same file. I... (4 Replies)
Discussion started by: shirish_cd
4 Replies
4. Shell Programming and Scripting
Hi friends,
I am working as a DataStage developer. I need help in writing shell script.
I have following file and I want to remove data from 1st field and store it into other file.
Convert this file,
A100 Tylenol 100mg
A100 PCML 500mg
B120 CFDR 250mg
C345 PFLX 600mg
... (4 Replies)
Discussion started by: sunnysunny
4 Replies
5. Shell Programming and Scripting
Hi,
I am new to shell scripting.
I have one .txt file whose name is status.txt
Now i want to read the contents of this file in a variable.
status.txt file contains the following input
1.xml
2.ps
3.pdf
now i want to read this status.txt file. Can anybody please help me to write a... (2 Replies)
Discussion started by: sunitachoudhury
2 Replies
6. Shell Programming and Scripting
All Expert,
I am using Sun OS 5.8 and Perl version 5 in One server and Perl 5.8 in another unix server.
I am able to read a file using fopen function of perl --file size having more then 3 GB of data.(In the machine where Perl 5.8 install)
But when i am running the same perl script --It... (1 Reply)
Discussion started by: jambesh
1 Replies
7. Shell Programming and Scripting
Hi,
I need help urgently for following issue. Pls help me to resolve this issue.
I am calling sql script file(file1.sql) from UNIX Shell Script(script1.ksh) using sql plus and trying to create flat file that contains all records returned from SQL query in SQL script(file1.sql)
I given... (6 Replies)
Discussion started by: praka
6 Replies
8. Shell Programming and Scripting
I have written a shell script to Automatically FTP a file. The script runs fine when doing it manually but when I schedule it using a crontab it gives me an error.
.
.
.
echo "-----------------Starting File FTP---------------------" >> $PROS_LOAD_LOG
echo "open X.XX.XX.XXX" >>... (13 Replies)
Discussion started by: tanhajoy
13 Replies
9. Shell Programming and Scripting
I am trying to write a shell script which takes an input file as an arguement in the terminal e.g. bash shellscriptname.sh input.txt. I would like for the file to be read line by line each time checking if the .txt file contains certain words or letters(validating the syntax). If the line being... (8 Replies)
Discussion started by: Gurdza32
8 Replies
10. Shell Programming and Scripting
Hello,
I have below string, even I have hundreds of lines in a file. I want to exactly match last two consecutive strings.
2017-09-30|ACBD,TVF|01234|NULL|18|NULL|686091802|BANK OF ABCD, LIMITED, THE|2017-09-30 00:00:00
I want to extract the string 2017-09-30 00:00:00
How can I do... (1 Reply)
Discussion started by: shellquery26666
1 Replies
LEARN ABOUT DEBIAN
syslogout
SYSLOGOUT(8) System Manager's Manual SYSLOGOUT(8)
NAME
syslogout - modular centralized shell logout mechanism
DESCRIPTION
syslogout is a generic approach to enable centralized shell logout actions for all users of a given system in a modular and centralized way
mostly aimed at avoiding work for lazy sysadmins. It has only been tested to work with the bash shell.
It basically consists of the small /etc/syslogout shell script which invokes other small shell scripts having a .bash suffix which are con-
tained in the /etc/syslogout.d/ directory. The system administrator can drop in any script he wants without any naming convention other
than that the scripts need to have a .bash suffix to enable automagic sourcing by the /etc/syslogout script.
For shell sessions, the contents of /etc/syslogout.d/" will be sourced by every user at logout if the following lines are present in his
$HOME/.bash_logout:
if [ -f /etc/syslogout ]; then
. /etc/syslogout
fi
If used for X sessions it is advisable to include the former statement into the Xreset script of the X display manager instead to prevent
that closing of an terminal emulator window yields unexpected results in your running X session if your X11 terminal emulator is using a
login shell. Be sure then to run it under the user-id of the X session's user. See the example files in /usr/share/doc/syslogout/ for
illustration.
Users not wanting /etc/syslogout to be sourced for their environment can easily disable it's automatic mechanism. It can be disabled by
simply creating an empty file called $HOME/.nosyslogout in the user's home directory using e.g. the touch(1) command.
Any single configuration file in /etc/syslogout.d/ can simply be overridden by any user by creating a private $HOME/.syslogout.d/ directory
which may contain a user's own version of any configuration file to be sourced instead of the system default. It's names have just to
match exactly the system's default /etc/syslogout.d/ configuration files. Empty versions of these files contained in the $HOME/.syslo-
gout.d/ directory automatically disable sourcing of the system wide version.
Naturally, users can add and include their own private scripts to be automagically executed by /etc/syslogout at logout time.
OPTIONS
There are no options other than those dictated by shell conventions. Anything is defined within the configuration scripts themselves.
SEE ALSO
The README files and configuration examples contained in /usr/share/doc/syslogout/ and the manual page for bash(1), xdm(1x),
xdm.options(5), and wdm(1x). Recommended further reading is everything related with shell programming.
If you need a similar mechanism for executing code at login time check out the related package sysprofile(8) which is a very close compan-
ion to syslogout.
BUGS
syslogout in its current form is mainly restricted to bash(1) syntax. In fact it is actually a rather embarrassing quick and dirty hack
than anything else - but it works. It serves the practical need to enable a centralized bash configuration until something better
becomes available. Your constructive criticism in making this into something better" is very welcome. Before i forget to mention it: we
take patches... ;-)
AUTHOR
syslogout was developed by Paul Seelig <pseelig@debian.org> specifically for the Debian GNU/Linux system. Feel free to port it to and use
it anywhere else under the conditions of either the GNU public license or the BSD license or both. Better yet, please help to make it into
something more worthwhile than it currently is.
SYSLOGOUT(8)