02-07-2013
Rule of thumb:
do the most in the main shell.
The exception proves the rule.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi,
Is there a way to have something working like the read Unix command to stop a awk ask a question and get the result.
I've try system("read a") but it does not work.
Thanks.
Franck. (6 Replies)
Discussion started by: fwirbel
6 Replies
2. UNIX for Dummies Questions & Answers
hi,
Can anyone tell me how I make a tree on the console showing the largest folders on my UNIX system?
I want to know where are located the biggest files so I can free some disk space.
thanks a lot. (3 Replies)
Discussion started by: gandoura
3 Replies
3. UNIX for Advanced & Expert Users
in unix when i use top
i get an output like this:
load averages: 0.64, 0.57, 0.53 14:04:42
347 processes: 1 running, 1 waiting, 169 sleeping, 172 idle, 4 stopped
CPU states: 16.4% user, 2.8% nice, 7.6%... (2 Replies)
Discussion started by: gfhgfnhhn
2 Replies
4. UNIX for Dummies Questions & Answers
can any one please help me how to use "read" command for openig a file.i want to process the file record by record and then needs to search for a particular string at a particular position.can any one please let me know the code.i am new to the shell.
below are sample sample records
... (3 Replies)
Discussion started by: raoscb
3 Replies
5. UNIX for Dummies Questions & Answers
Hi All,
Please help me out
1) Command to find the disk usage in GB. I know that du -k will give in kilobites.
2) How to find the Biggest file/folder in a given set of files/folders.
Thanks in advance
Regards,
Manas (8 Replies)
Discussion started by: manas6
8 Replies
6. HP-UX
how can I find cpu usage memory usage swap usage and
I want to know CPU usage above X% and contiue Y times and memory usage above X % and contiue Y times
my final destination is monitor process
logical volume usage above X % and number of Logical voluage above
can I not to... (3 Replies)
Discussion started by: alert0919
3 Replies
7. UNIX for Dummies Questions & Answers
Ok, so I am using the Top command on my linux VPS to try and see the processes using the most CPU %.
I hit the P to sort by CPU % but it wants to sort them from lowest to highest (ascending). My Telnet-SSH screen is only about 60 rows high so the processes with the highest CPU % usage are at the... (6 Replies)
Discussion started by: davemehta
6 Replies
8. Shell Programming and Scripting
Hi,
I need a command that gives me the user who is using more space in the unix box (1 Reply)
Discussion started by: abinaya
1 Replies
9. UNIX for Dummies Questions & Answers
Hi all,
Can you please tell me the command, with which one can know the amount of space a specific directory has used.
df -k . ---> Displays, the amount of space allocated, and used for a directory.
du -k <dir name> - gives me the memory used of all the files inside <dir>
But i... (2 Replies)
Discussion started by: abhisheksunkari
2 Replies
10. UNIX for Dummies Questions & Answers
Hello,
Below, I have a unix command, which can be executable for single file.
cat input.txt | sort -k3,3 > output.txt
I have 100 input files in a directory. It is hectic and time taking to run the above command for all the 100 files for 100 times.
Now, I want to execute the above unix... (2 Replies)
Discussion started by: koneru_18
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)