This is probably going to be very simple but i came across something i can't quite explain. Here is the situation: i have a list of files, which i'd like to process one by one (get the size, make some tests, whatever) and generate some statistics using different variables.
Something similar to this:
And here are the results (there are 3 files in the current directory):
Quote:
inside u=0
inside u=1
inside u=2
outside u=0
So basically the variable u appears to get re-initialised somehow.
Using until or a classic for loop u keeps its value after the loop is executed, like this:
I have a while read loop that reads values inside of a file and then performs an expr operation on each.
Everything works fine, the way it's supposed to but, once the loop is finished, I can not access the variable that I used inside of the loop (but that variable was created outside of the... (7 Replies)
Surely there's an easier way to do this, lets see if anyone knows! I am new to scripting so go easy on me!
I have the following script and at the moment it doesn't work and I believe the problem is that I am using a while loop within a while loop. When I run the script using sh -x I can see... (6 Replies)
hi guys,
i have an array called ARRAY which has elements in it... i am trying to assign elements of ARRAY to master_array..
i get a =: command not found error..
i=0
while
do
${master_array}=${ARRAY}
((i++))
done
is there something i am missing? (4 Replies)
Hi!
Could someone explain me why the below code is printing the contents of IF block 5 times instead of 0?
#!/bin/bash
VAR1="something"
VAR2="something"
for((i=0;i<10;i++))
do
if(($VAR1=~$VAR2))
then
echo VAR1: $VAR1
echo... (3 Replies)
Hi script gurus.
I have need to know how to use for loop with multiple variable.
Basically lets take for example /etc/passwd file has following entries
The above cat command will basically first greps the real users that have email addresses then converts ':' to '+' then using cut... (4 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Your shell script should continue to execute until the user selects option 4
2. Relevant commands, code,... (2 Replies)
hello
i'm writing a script and I want to use a for loop inside a while loop as following:
while read line;
do
echo $line
for i in $vrm;
do
echo $i
done
done < './contacts'
when i use just the while loop it prints the lines from file ./contacts just... (13 Replies)
I am trying to use two nested for loops to process some files and then create a new file using both variables in the output file name. I have several files in this naming style:
S1_L3_all_R1.fastq
S1_L3_all_R2.fastq
S1_L4_all_R1.fastq
S1_L4_all_R2.fastq
.
.
S1_L8_all_R1.fastq... (3 Replies)
I have a script to start/stop/restart the tomcat application. When we run the script first time i.e stop/start it set all env variables(DISTRIB_ID,NAME,TOMCAT_CFG,....etc),but when we restart the tomcat it is running in the same shell.....I need to set the variables when i restart the tomcat(in the... (1 Reply)
I have 3 loops that I use to determine the permission level of AWS user accounts.
This array lists the AWS policy ARN (Amazon Resource Name):
for ((policy_index=0;policy_index<${#aws_managed_policies};++policy_index)); do
aws_policy_arn="${aws_managed_policies}"
... (1 Reply)
Discussion started by: bluethundr
1 Replies
LEARN ABOUT DEBIAN
sysprofile
SYSPROFILE(8) System Manager's Manual SYSPROFILE(8)NAME
sysprofile - modular centralized shell configuration
DESCRIPTION
sysprofile is a generic approach to configure shell settings in a modular and centralized way mostly aimed at avoiding work for lazy sysad-
mins. It has only been tested to work with the bash shell.
It basically consists of the small /etc/sysprofile shell script which invokes other small shell scripts having a .bash suffix which are
contained in the /etc/sysprofile.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 /etc/sysprofile.
This mechanism is set up by inserting a small shell routine into /etc/profile for login shells and optionally into /etc/bashrc and/or
/etc/bash.bashrc for non-login shells from where the actual /etc/sysprofile script is invoked:
if [ -f /etc/sysprofile ]; then
. /etc/sysprofile
fi
For using "sysprofile" under X11, one can source it in a similar way from /etc/X11/Xsession or your X display manager's Xsession file to
provide the same shell environment as under the console in X11. See the example files in /usr/share/doc/sysprofile/ for illustration.
For usage of terminal emulators with a non-login bash shell under X11, take care to enable sysprofile via /etc/bash.bashrc. If not set
this way, your terminal emulators won't come up with the environment defined by the scripts in /etc/sysprofile.d/.
Users not wanting /etc/sysprofile 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/.nosysprofile in the user's home directory using e.g. the touch(1) command.
Any single configuration file in /etc/sysprofile.d/ can be overridden by any user by creating a private $HOME/.sysprofile.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/sysprofile.d/ configuration files. Empty versions of these files contained in the $HOME/.syspro-
file.d/ directory automatically disable sourcing of the system wide version.
Naturally, users can add and include their own private script inventions to be automagically executed by /etc/sysprofile at login 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 /etc/sysprofile.d/ and the manual pages 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 logout time check out the related package syslogout(8) which is a very close compan-
ion to sysprofile.
BUGS
sysprofile 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
sysprofile 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.
SYSPROFILE(8)