Hi,
I have a script called sam.sh which consists of a single echo statement like this
#/usr/bin/ksh
echo "Mani"
I changed the mode for the script by giving chmod a+x sam.sh.
If I want to execute the scrpt by just giving the name at the command line "sam.sh", what should I necessarily do?... (3 Replies)
If I did indeed grep something out of it, why woudln't $result show nothing?
When I do $? , it does show success...
What is the proper syntax so that $result shows actual thing it's grepping out?
result=`(ssh $host tail -1 /something/somethingelse) | egrep -i "value" >dev/null`
#echo... (3 Replies)
In bash scripts please can someone tell me if the below is the correct syntax for comparing integers and strings;
for integers -
if ;then
for strings -
if ; then
Thanks
Calypso (4 Replies)
Hey I have to create a unix script that when run uses the 'man' command to print out the command information of commands passed as arguments. I have the basic pseudo code, but I don't know how to implement a loop. Any help is greatly appreciated. Cheers.
short-manual <ls cc pwd>... (3 Replies)
Hi,
I am very new to this forum, can any one tell me which is the very basic certification on unix shell scripting?
please give me an advice on this. (1 Reply)
Hi All,
I am a newbie to shell scripting. I am trying to something like this.
#!bin/bash
cd /u01/app/oracle/
# then start the process
./opmnctl startall
Can someone help me with this requirement.
Help is very much appreciated.
Thanks
Venkat
Please use code tags next time for... (10 Replies)
Discussion started by: venkat8439
10 Replies
LEARN ABOUT LINUX
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 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)