Maybe use the editor of your choice and write a shell script, ie. write it into a file, like this example with the editor "vi": (press i to insert text)
Code:
$> vi myscript.ksh
#!/bin/ksh
echo this is line 2
exit 0
(press : then write wq and hit ENTER)
$> chmod 750 myscript.ksh
$> ./myscript.ksh
this is line 2
vi might seem difficult at first but after some weeks of use you will accidentally use things like :wq in editors like Open Office Writer accidentally
There are plenty of references on vi commands/shortcuts on the web.
hi all,
i am new to UNIX. this is my first time using Ubuntu. i need to do this for my fyp.
i am using an artificial neural network model to predict the yield strength of steel. the shell script used to execute this model is as shown here:
#Thomas Sourmail, Cambridge University /... (4 Replies)
I have this script someone very kindly help me write last year which loops through all files in a folder and does a command.
I need to modify it to loop through all sub-folders of a main folder and only perform the command on files modified after Jan 1st 2008. And I need the command to place the... (3 Replies)
Hi,
i have created a simple .ksh file in the following manner
cat <<EOF >mfile
#!/bin/ksh
echo "hello world"
EOF
I have 2 questions
1. now i would like to add a second line after the first echo command
e.g. echo "this is line 2"
how can i do that ?
2. I would then like... (1 Reply)
I need to replace the line daemon ntpd $OPTIONS in the following script with daemon ntpd $OPTIONS 2>&1 > /var/log/ntpd.log &
what will happen?
The idea of replacing is to capture the output on the console into ntpd.log file.
Will this work?
... (1 Reply)
Hi freinds
I have a small problem I want u to help me in, I have a syslog server and configured it to send me email automatically, I get a small perl script to help me in, and tested it to send alerts to root and it worked successfully without any problems
Now I want to send it outside, I... (4 Replies)
Hi,
I am new to shell programming, and want to know is it possible to change the contents of file using script?
for example, if want to search 2 words and want to replace these words with 2 new words.
Regards,
Manoj (4 Replies)
Hello,
I have a shell script which calls for an existing script with appropriate parameters. It looks something like this.
--------------------------------------------------------------------------
#!/bin/bash
sh /root/ams_rc stop_shepherd > /dev/null
sleep 30
sh /root/ams_rc... (9 Replies)
I have the records in the format
one row
0009714494919I MY010727408948010 NNNNNN N PUSAAR727408948010 R007YM08705 9602002 S 111+0360832-0937348
I want to get it int the format
0009714494919I MY010727408948010 NNNNNN N PUSAAR727408948010 R007YM08705 9602002 S ... (2 Replies)
I have a script that currently runs fine and I need to add or || (or) condition to the if statement and I'm not sure the exact syntax as it relates to the use of brackets.
my current script starts like this:
errLog="/usr/local/website-logs/error.log"
apacheRestart="service httpd restart"... (3 Replies)
Discussion started by: jjj0923
3 Replies
LEARN ABOUT SUNOS
case
shell_builtins(1)shell_builtins(1)NAME
shell_builtins, case, for, foreach, function, if, repeat, select, switch, until, while - shell command interpreter built-in commands
The shell command interpreters csh(1), ksh(1), and sh(1) have special built-in commands. The commands case, for, foreach, function, if,
repeat, select, switch, until, and while are commands in the syntax recognized by the shells. They are described in the Commands section of
the manual pages of the respective shells. The remaining commands listed in the table below are built into the shells for reasons such as
efficiency or data sharing between command invocations. They are described on their respective manual pages.
|
Command | Shell
alias |csh, ksh
bg |csh, ksh, sh
break |csh, ksh, sh
case |csh, ksh, sh
cd |csh, ksh, sh
chdir |csh, sh
continue |csh, ksh, sh
dirs |csh
echo |csh, ksh, sh
eval |csh, ksh, sh
exec |csh, ksh, sh
exit |csh, ksh, sh
export |ksh, sh
false |ksh
fc |ksh
fg |csh, ksh, sh
for |ksh, sh
foreach |csh
function |ksh
getopts |ksh, sh
glob |csh
goto |csh
hash |ksh, sh
hashstat |csh
history |csh
if |csh, ksh, sh
jobs |csh, ksh, sh
kill |csh, ksh, sh
let |ksh
limit |csh
login |csh, ksh, sh
logout |csh, ksh, sh
nice |csh
newgrp |ksh, sh
nohup |csh
notify |csh
onintr |csh
popd |csh
print |ksh
pushd |csh
pwd |ksh, sh
read |ksh, sh
readonly |ksh, sh
rehash |csh
repeat |csh
return |ksh, sh
select |ksh
set |csh, ksh, sh
setenv |csh
shift |csh, ksh, sh
source |csh
stop |csh, ksh, sh
suspend |csh, ksh, sh
switch |csh
test |ksh, sh
time |csh
times |ksh, sh
trap |ksh, sh
true |ksh
type |ksh, sh
typeset |ksh
ulimit |ksh, sh
umask |csh, ksh, sh
unalias |csh, ksh
unhash |csh
unlimit |csh
unset |csh, ksh, sh
unsetenv |csh
until |ksh, sh
wait |csh, ksh, sh
whence |ksh
while |csh, ksh, sh
Bourne Shell, sh, Special Commands
Input/output redirection is now permitted for these commands. File descriptor 1 is the default output location. When Job Control is
enabled, additional Special Commands are added to the shell's environment.
In addition to these built-in reserved command words, sh also uses:
: No effect; the command does nothing. A zero exit code is returned.
.filename Read and execute commands from filename and return. The search path specified by PATH is used to find the directory con-
taining filename.
C shell, csh
Built-in commands are executed within the C shell. If a built-in command occurs as any component of a pipeline except the last, it is exe-
cuted in a subshell. In addition to these built-in reserved command words, csh also uses:
: Null command. This command is interpreted, but performs no action.
Korn Shell, ksh, Special Commands
Input/Output redirection is permitted. Unless otherwise indicated, the output is written on file descriptor 1 and the exit status, when
there is no syntax error, is zero.
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.
In addition to these built-in reserved command words, ksh also uses:
* : [ arg ... ] The command only expands parameters.
* .file [ arg ..Read the complete file then execute the commands. The commands are executed in the current shell environment. The search
path specified by PATH is used to find the directory containing file. If any arguments arg are given, they become the posi-
tional parameters. Otherwise, the positional parameters are unchanged. The exit status is the exit status of the last com-
mand executed. the loop termination test.
intro(1), alias(1), break(1), cd(1), chmod(1), csh(1), echo(1), exec(1), exit(1), find(1), getoptcvt(1), getopts(1), glob(1), hash(1), his-
tory(1), jobs(1), kill(1), ksh(1), let(1), limit(1), login(1), logout(1), newgrp(1), nice(1), nohup(1), print(1), pwd(1), read(1), read-
only(1), set(1), sh(1), shift(1), suspend(1), test(1B), time(1), times(1), trap(1), typeset(1), umask(1), wait(1), chdir(2), chmod(2),
creat(2), umask(2), getopt(3C), profile(4), environ(5)
29 Jun 2005 shell_builtins(1)
03-13-2009
