I am writng a shell script which will call another script startServer and then execute one more script pingServer to check if the server is up.
As it takes sometimes for the server to start, so I have defined an until loop to check the status of the server until the server is up, by calling the pingServer script again.
I want pingServer script to be executed 4 times in every 4 minutes before terminating the loop.
I've already written a script, so need your guidance and suggestions(mainly in Retries statement) in making the script better.
Hi,
I am new to shell programming, and hve been given a request to write a shell script.
Is there any good places to go to see examples of how to write shell programming scripts?
Thanks (4 Replies)
For what purposes should we use shell
/what are the tasks we can achieve using shell
which is best book to learn shell programming
and will nayone tell me diff between shell programming aand shell scripting?
Thank u in advance. (1 Reply)
Provides a menu structure that allows a user to select several options - input a name and address,
lookup a name and address, delete a name and address, and print a formatted report from a text
database (note: this requirement assumes that you will use the program to create a database, though in... (1 Reply)
How can i get sendmail to immediately bounce mail when the server on the other side gives a "550 unknown user" SMTP error? Currently, the outbound mail stays in the queue and is retried until our server gives up, some days later. (0 Replies)
Hi iam new to shell programming. I would like to ask one dought abt the file
handling in unix.
Iam having a file1 as follows:
ASDERFCX1234567890123456
POIUYTRE0098765432123456
BVCXCVBN0955644411111111
File2
ASDERFCX1234567890123456 kill@abc.com ... (8 Replies)
My purpose was to print out all of name of students in a list.First of all,I created a file name "List" in /home/tuan/Desktop/Shell_programming as below
Tom
Henry
Ben
Linda
Marry
And my script "script" is
#!/bin/sh
path=/home/tuan/Desktop/Shell_programming/List
for student in $path... (3 Replies)
Hi i need a favour
i have a file which has some trillions of records. The file is like this
11111000000000192831840914000000000000000000000000000
45789899090000000000000000011111111111111111111111111
I want to cut specific postions in each line like cut1-3 and assisgn it to a variable and... (0 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 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)