Thank you for the suggestion it lead me to the below which produces the desired result:
Thank you for your help .
Note that instead of starting a subshell for the command substitution and invoking the basename utility for every file you process, you can change:
to:
to make it more efficient and a little bit faster while getting exactly the same results.
Hi I have fakebook.csv as following:
F1(current date) F2(popularity) F3(name of book) F4(release date of book)
2006-06-21,6860,"Harry Potter",2006-12-31
2006-06-22,,"Harry Potter",2006-12-31
2006-06-23,7120,"Harry Potter",2006-12-31
2006-06-24,,"Harry Potter",2006-12-31... (0 Replies)
I have the files logged in the file system with names in the format of : filename_ordernumber_date_time
eg:
file_1_12012007_1101.txt
file_2_12022007_1101.txt
file_1_12032007_1101.txt
I need to find out all the files that are logged multiple times with same order number. In the above eg, I... (1 Reply)
I have a file which is
2
3
4
5
6
6
so i am writing program in C to calculate mean..
#include<stdio.h>
#include<string.h>
#include <math.h>
double CALL mean(int n , double x)
main (int argc, char **argv)
{
char Buf,SEQ;
int i;
double result = 0;
FILE *fp; (3 Replies)
Hello,
I'm new member of shell scripting and i face some difficulties. To begin, i try to write an algorithm that calculate from one directory containing nfdump files (288) the entropy of one day 24hours. Each of the file is 5 min interval
(nfdump -r nfcapd.200908250000 -s srcip) 1st
(nfdump... (0 Replies)
How can I write a script that determines the directory the user is in, and displays that path up until a particular point?
Specifically, I need to find the text "packages" in the directory name, then I need to capture that directory and the one below it.
For example, if the user is in the... (5 Replies)
I want to calculate the average line by line of some files with several lines on them, the files are identical, just want to average the 3rd columns of those files.:wall:
Example file:
File 1
001 0.046 0.667267
001 0.047 0.672028
001 0.048 0.656025
001 0.049 ... (2 Replies)
Hey guys,
Sorry for the basic question but I have a lot of files that I want to separate into groups based on filenames which I can then cat together. Eg I have:
(a_b_c.txt)
WB34_2_SLA8.txt
WB34_1_SLA8.txt
WB34_1_DB10.txt
WB34_2_DB10.txt
WB34_1_SLA8.txt
WB34_2_SLA8.txt
77_1_SLA8.txt... (1 Reply)
Hello,
I need to add a part of folder name to the files inside it. For instance the file is
HMCBackup_20150430.155027.tgz
and it is under directory /nim/dr/HMCBackup/cops22
I need to add cops22 to the file name so as it would be cops22_HMCBackup_20150430.155027.tgz
Any help in doing... (10 Replies)
In the below bash processes substitution, if there are 3 files in a directory /home/cmccabe/medex.logs/analysis.log, the filename variable is set to where these files are located.
The code does execute, the problem is that if there is a renamed file in the output directory below, it gets... (0 Replies)
My old school way is a one liner. And will search for average from SAR, to get the data receive rate. But, I dont think it is practical or accurate,. Because it calculates to off peak hours. I am planning to change it. My cron runs every 30 mins. When my cron runs, and my time is 14:47pm,, it will... (1 Reply)
Discussion started by: invinzin21
1 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)