1. The problem statement, all variables and given/known data:
I have been asked to create a bash script to delete comments from another file but in the file they have an echo command with this inside of it /* this is an echo */\ so obviously they want to keep this one in the file. I have found this bit of code and im having trouble reading it. starting with the first line with #!/bin/sed -f as we have only be dealing with #!/bin/bash. so therefor all the :x and N bs etc. is making it harder for me to understand so in other words i want to re-write this code starting with #!/bin/bash and using straight calls to the sed command. Any help would be great.
2. Relevant commands, code, scripts, algorithms:
3. The attempts at a solution (include all code and scripts):
This is straight up not working.
4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):
2309ENG: C & Unix Programming - Dr David Rowlands
Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
Hello Unix Gurus,
We are doing large system upgrade. We expect upgrade to last 180-200 hours. The servers are located remotely.
I am looking for solution which allows me to reconnect to the same session active on unix server where I launched the process. This would protect from local client... (0 Replies)
I have a file with a single line in it as below.
field1 field2 field3
Different fields separated by spaces. I need the output as below.
field1
field2
field3
Any sed/awk solution you can suggest? (6 Replies)
$db2 connection ...........Q
a=`$db2 -x "select A from tablename where z in (select z from tablename Q where condition fetch first 1 rows only ) with ur"`
b=`$db2 -x "select B from tablename where z in (select z from tablename Q where condition fetch first 1 rows only) with ur"`
$db2... (2 Replies)
hi
i have one file where i want to substitute only first instance of
swap
with swap1
i want to replcae only first instance of swap in my script
i know we can do this with awk. but i need to do this with sed only
i tried follwoing code
sed 's/swap/swap1' filename
but here all... (15 Replies)
Hi,
can anyone help me with my scrip please. I wanted do following tasks:
1. List all the directory
2. A STDIN to ask user to enter a directory name from listed directories
3. command to check if the directory exists( or a command to validate if the user entered a valid directory name)
... (2 Replies)
Hi All,
I am using LATEX and need to delete all the lines in a file matching:
\begin{work}
I know there are several ways to do this, but I am trying to do it with the substitute command in VI. The problem is I can't get substitute to recognize the character '\'!
How do I do it?
... (7 Replies)
have this code but when i run it i get this error
./pulse: line 2: and here is the code
#!/bin/bash
if ;
then
pulseaudio -k;
fi
what am i doing wrong
thanks
Adam (5 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
Try running 'phone4 xyz' and see what happens.
Modify your program so that if no matching name is found, an... (1 Reply)
Hello people,
I am having problem to sort, sed and zero padding of column in csv file.
7th column only.
Input of csv file:
1,2,3,4,5,6,4/1/2010 12:00 AM,8
1,2,3,4,5,6,3/11/2010 9:39 AM,8
1,2,3,4,5,6,5/12/2011 3:43 PM,8
1,2,3,4,5,6,12/20/2009 7:23 PM,8
Output:... (5 Replies)
I'm trying to remove '--X' from the whole file and using variables replace $oldvar with $newvar.
I have tried with double quotes but it doesn't seem to work. $newvar is set to /usr/bin/bash. Would appreciate some guidance.
newvar=$(which bash)
oldvar=/bin/bash
sed... (1 Reply)
Discussion started by: itman73
1 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)