I'm having problems with bash scripts. If a bash script is called with no arguments, I always get "PHIST=!" as the first argument (i.e. this is what $1 equals). Why? Where does this come from, and how can I fix it? Nothing in the bash man pages refer to this mysterious default argument. (2 Replies)
Can someone please help me with this SHELL script?
I need to create a script that gets a positive number n as an argument. The script must calculate the factorial of its argument. In other words, it must calculate n!=1x2x3x...xn. Note that 0!=1.
Here is a start but I have no clue how to... (3 Replies)
For the following code:
awk -F":" -v OFS=":" 'NR==FNR{a=$2;next}a{$2=a}1' shadow2 shadow1 > shadow3
I get syntex error as below:
awk: NR==FNR{a=;next}a{=a}1
awk: ^ syntax error
awk: fatal: invalid subscript expression
On investigation, I noticed that when I create a bash... (4 Replies)
Hi guys!
So, I use GET ( Simple user agent using LWP library. ) on a remote text file that is then passed to bash and executed. However, I need to pass that bash script a single argument, and so far nothing that I have tried has worked, although I have learned quite a bit about input/output... (5 Replies)
Hi All,
I want to run a bash script using perl. But they are in the different dir.
#! /usr/bin/perl -w
use strict;
my $root=`pwd`;
chomp($root);
my $cmd=".$root/testdir/ft_623.sh 3 4 5 6 7";
print $cmd;
my @line=`$cmd`;
foreach (@line){
print $_;
}
ft_623.sh (0 Replies)
Hi everybody!
I am writing a script which accepts two arguments one of them being a message. All is working except for the message part. That is, to accept text as an argument.
I have trouble storing and echoing a line of text. It seems that writing a few words and store them in an... (6 Replies)
Hello,
Is there any method thorugh which script can take argument if pass otherwise if argument doesn't pass then it takes the argument from the configuration file
i.e I am workiing on a script which will run through crontab and the script will
chekout the code ,zip and copy to the... (3 Replies)
I would like to search and print a match of the user entered $ARGV.
Im terrible with hashes and really dont know where to go from here.
The example data file
name location phone
Bugs holeintheground 5551212
Woody holeinthetree 6661313
Jerry holeinthewall 7771414... (4 Replies)
I pass an argument to bash as run. The first command in green executes as expected, however the second in blue fails as the $run does not expand. I tried to escape the variable with \ thinking the quotes were making the literal translation and also "${run}" but both did not work to expand the... (3 Replies)
Discussion started by: cmccabe
3 Replies
LEARN ABOUT SUSE
rbash
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 filename 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)