05-02-2018
It frequently helps to run a shell script with the -x option which immediately had shown the problem.
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1. Shell Programming and Scripting
can anyone explain me what is the difference between echo and print in shell programming? (3 Replies)
Discussion started by: chandhar
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2. UNIX for Dummies Questions & Answers
First of all i really thankful to all those people who have created this site.
unix.com rocks man!!
I am bit confused about the two commands which are 'top' and 'ps -ef'.:confused:
My requirement is that i want to monitor the CPU usage of Operating system and if the CPU usage is more than 90%... (2 Replies)
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What is the difference between test expr VS .
For example :
if test 5 -eq 6
echo "Wrong"
and
if
echo "Wrong"
bot will give the same output as Wrong.
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Any answer will be... (2 Replies)
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In C that was easy with a for and if. Iam trying to learn a litle more in bash.
Example
Ronaldo:5800
Figo:4000
Rafael:2321
Kaka:1230
I want the max of the $2 and the output will be:
The max value is 5800 from Ronaldo.
How can i do this in shell?
Thanks for all, folks. (11 Replies)
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5. Shell Programming and Scripting
Hi,
I need subtract two date values (which are in day of the year format) and the output would give the remaining days. using the command date +"%j" i would get today's 'day of the year' i.e.,
> date +"%j"
256
Next, i need to take input of a previous date in the format 09/05/2012 and then... (4 Replies)
Discussion started by: sam_bd
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RBASH(1) General Commands Manual RBASH(1)
NAME
rbash - restricted bash, see bash(1)
RESTRICTED SHELL
If bash is started with the name rbash, or the -r option is supplied at invocation, the shell becomes restricted. A restricted shell is
used to set up an environment more controlled than the standard shell. It behaves identically to bash with the exception that the follow-
ing are disallowed or not performed:
o changing directories with cd
o setting or unsetting the values of SHELL, PATH, ENV, or BASH_ENV
o specifying command names containing /
o specifying a file name containing a / as an argument to the . builtin command
o specifying a filename containing a slash as an argument to the -p option to the hash builtin command
o importing function definitions from the shell environment at startup
o parsing the value of SHELLOPTS from the shell environment at startup
o redirecting output using the >, >|, <>, >&, &>, and >> redirection operators
o using the exec builtin command to replace the shell with another command
o adding or deleting builtin commands with the -f and -d options to the enable builtin command
o using the enable builtin command to enable disabled shell builtins
o specifying the -p option to the command builtin command
o turning off restricted mode with set +r or set +o restricted.
These restrictions are enforced after any startup files are read.
When a command that is found to be a shell script is executed, rbash turns off any restrictions in the shell spawned to execute the script.
SEE ALSO
bash(1)
GNU Bash-4.0 2004 Apr 20 RBASH(1)