10 More Discussions You Might Find Interesting
1. Homework & Coursework Questions
Create 2 files in unix in 2 different directories, compare them and fetch common words between these 2 files. Print them on the screen and also redirect the output to your home directory in the below format: file 1 | file 2 line no: word 1 | line no: word 1 line no: word 2 | line no: word 2 line... (11 Replies)
Discussion started by: mounica bijjala
11 Replies
2. Homework & Coursework Questions
1. The problem statement, all variables and given/known data:
Hello! :)
I currently got the task of programming a UNIX Shell for practice. The functionality is as follows:
1. Entering commands with the keyboard. Enter stops the input and creates a process which should start any program
2.... (0 Replies)
Discussion started by: DarkDan
0 Replies
3. Shell Programming and Scripting
Hello! :)
I currently got the task of programming a UNIX Shell for practice. The functionality is as follows:
1. Entering commands with the keyboard. Enter stops the input and creates a process which should start any program
2. the shell waits for termination of each command before... (1 Reply)
Discussion started by: DarkDan
1 Replies
4. Shell Programming and Scripting
Guys,
What do you think is the best way to learn UNIX and shell scripting?
** I keep on searching tutorials online, where I loose most of my time :(
Let me know the way you learnt the UNIX concepts, your replies might help me learn more.
Thanks a ton:b: (2 Replies)
Discussion started by: dnam9917
2 Replies
5. Shell Programming and Scripting
Hi guys
i have two different line
input
M5.7&a : M5 minimum density is 20%, maximum density is 80%,
DENSITY PERM=M5.8&a(180) ......... 6 violations found.
M6.7&a : M6 minimum density is 20%, maximum density is 80%,
DENSITY A=M6.8&a(180) ......... 6 violations found.
need... (2 Replies)
Discussion started by: ashokkrishna063
2 Replies
6. UNIX for Dummies Questions & Answers
How does unix system administration, unix programming, unix network programming differ?
Please help. (0 Replies)
Discussion started by: thulasidharan2k
0 Replies
7. Shell Programming and Scripting
Hi Gurus
I am very new to Unix Shell Prog. I have a file in format
Q1 Dirname-FileName Score Remarks
i.e. containing columns separated by space. I want to read Column 1 and 2 and then join them to make a string that would be a path to a file. I will use this string to fetch the files and... (4 Replies)
Discussion started by: kimskams80
4 Replies
8. Shell Programming and Scripting
Hi,
I am looking for a PDF or an e-book which can show in details how to do Shell Scripting or Programming. Can anybody provide me with a link to such a tutorial? I have downloaded some tutorials but they show only basics and not give any in-depth study material.
I am using Red Hat Linux... (2 Replies)
Discussion started by: indiansoil
2 Replies
9. Shell Programming and Scripting
Hi,
i want to read a full file.
If i want to split the file and by reading parralel each, i can save the time.
Can any body give me the suggesion??
ia m using this function to read a file and using that i have to grep in another file. since the file 1 is huge it is taking lot of time.
... (3 Replies)
Discussion started by: nivas
3 Replies
10. Shell Programming and Scripting
Hi,
Iam using split command to split the files.
Splitted files will be named as xaa
xab
xac
xad etc.
Directories will be test1,test2,test3.....
Now i want to select the splitted files one by one and have to place in test directories.
can anybody give the soulution??? (2 Replies)
Discussion started by: nivas
2 Replies
exit(1) User Commands exit(1)
NAME
exit, return, goto - shell built-in functions to enable the execution of the shell to advance beyond its sequence of steps
SYNOPSIS
sh
exit [n]
return [n]
csh
exit [ ( expr )]
goto label
ksh
*exit [n]
*return [n]
DESCRIPTION
sh
exit will cause the calling shell or shell script to exit with the exit status specified by n. If n is omitted the exit status is that of
the last command executed (an EOF will also cause the shell to exit.)
return causes a function to exit with the return value specified by n. If n is omitted, the return status is that of the last command exe-
cuted.
csh
exit will cause the calling shell or shell script to exit, either with the value of the status variable or with the value specified by the
expression expr.
The goto built-in uses a specified label as a search string amongst commands. The shell rewinds its input as much as possible and searches
for a line of the form label: possibly preceded by space or tab characters. Execution continues after the indicated line. It is an error to
jump to a label that occurs between a while or for built-in command and its corresponding end.
ksh
exit will cause the calling shell or shell script to exit with the exit status specified by n. The value will be the least significant 8
bits of the specified status. If n is omitted then the exit status is that of the last command executed. When exit occurs when executing
a trap, the last command refers to the command that executed before the trap was invoked. An end-of-file will also cause the shell to exit
except for a shell which has the ignoreeof option (See set below) turned on.
return causes a shell function or '.' script to return to the invoking script with the return status specified by n. The value will be the
least significant 8 bits of the specified status. If n is omitted then the return status is that of the last command executed. If return
is invoked while not in a function or a '.' script, then it is the same as an exit.
On this man page, ksh(1) commands that are preceded by one or two * (asterisks) are treated specially in the following ways:
1. Variable assignment lists preceding the command remain in effect when the command completes.
2. I/O redirections are processed after variable assignments.
3. Errors cause a script that contains them to abort.
4. Words, following a command preceded by ** that are in the format of a variable assignment, are expanded with the same rules as a vari-
able assignment. This means that tilde substitution is performed after the = sign and word splitting and file name generation are not
performed.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
break(1), csh(1), ksh(1), sh(1), attributes(5)
SunOS 5.10 15 Apr 1994 exit(1)