10 More Discussions You Might Find Interesting
1. UNIX for Beginners Questions & Answers
Hi,
I am attempting to assign the output of the following command, to two bash variables, var1 and var2 using "read," but it doesn't seem to be working.
# openstack hypervisor stats show | awk -F'|' 'NR==14{print $2,$3}'
vcpus 92
# echo $?
0
# openstack hypervisor... (4 Replies)
Discussion started by: sand1234
4 Replies
2. UNIX for Beginners Questions & Answers
Hi,
I have a script below that is running ssh <host> <command> on some servers.
Below is more or less the script. I have to modify it somehow to get rid of the 'confidential' hostnames
check_log.bash
#!/bin/bash
#
myPID=$$
parse_log ()
{
sub="parse_log"
host=${1}
... (2 Replies)
Discussion started by: newbie_01
2 Replies
3. Shell Programming and Scripting
while read -a line; this is not working in ksh. what is the equivalent of this in ksh.
read: -a: unknown option (2 Replies)
Discussion started by: archana25
2 Replies
4. Shell Programming and Scripting
I'm looking for some help in figuring why my little bit of code will not process any entries other then the first one in my list.
while read line ;do
hostname=${line//\"}
a=`ssh user@$hostname uptime;echo $?`
if ];then
dt=`date`
touch... (6 Replies)
Discussion started by: whegra
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5. Shell Programming and Scripting
hello guys,
i am having the below piece of code
error
()
{
echo"Press y /n"
read ans
case $ans in
y) main;;
n) exit
esac
}
In the abve code, read statement is not working i.e not waiting for user to enter input.
,i tested exit status its 1.
could anyone help me to do this
... (11 Replies)
Discussion started by: mohanalakshmi
11 Replies
6. Shell Programming and Scripting
I was trying to write a simple script which will read a text file and count the number of vowels in the file. My code is given below -
#!/bin/bash
file=$1
v=0
if
then
echo "$0 filename"
exit 1
fi
if
then
echo "$file not a file"
exit 2
fi
while read -n... (14 Replies)
Discussion started by: linux_learner
14 Replies
7. Shell Programming and Scripting
Hello,
I have this file that sometime contains 0 lines and sometimes 1 or more.
It's supposed to then put the result (could be 0 or 1 or 2 or more) into a variable.
Then it's supposed to echo using an if else statement depending on the value of the variable.
flagvar='wc -l $tempfile |... (1 Reply)
Discussion started by: script_op2a
1 Replies
8. Shell Programming and Scripting
Hi,
I am trying to read a file line by line inside of a while loop. This while loop is part of a here document.
while read line
do
ssh -t $2@$remotehost <<REMOTE
ls path/to/dir > $path_to_dir
while read line1
do
echo "LINE --- $line"
done... (4 Replies)
Discussion started by: mnanavati
4 Replies
9. Shell Programming and Scripting
I have a script consisting of certain functions whose input is a file at same location. In that file i have written the name of anothe file at same location. The third file contains a word which act as a function in the first script.Let me give an example
i have a scrip file say 1.sh in which i am... (7 Replies)
Discussion started by: sumitdua
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10. Shell Programming and Scripting
Pls this is emergency.I have written a script which is taking input from another script. and the contents of my second script are acting as functions to my main script.Now the problem is that in one of the functions i want the script ececution to stop and start when user enters any character r... (2 Replies)
Discussion started by: sumitdua
2 Replies
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)