10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Dears,
I am looking for a script which will work as a watch directory.
I ha directory which keep getting files in every 10 mins and some time delay.
I want to monitor if the directory getting the files in every 10 mins if not captured the last received file time and calculate the delay.
... (6 Replies)
Discussion started by: sadique.manzar
6 Replies
2. Shell Programming and Scripting
Hello,
I am attempting to find and copy the two most recently added files to a specific directory, that fit a specific format.
I was able to find the command to list the two most recently added files in directory: ls -1t | head -n 2 The command lists the two files names in a vertical list,... (11 Replies)
Discussion started by: mattkoz
11 Replies
3. Shell Programming and Scripting
Hi guys,
could you help to find a way to get the past 30 mins time in solaris.
version:
bash-3.00# uname -a
SunOS solaris 5.10 Generic_142910-17 i86pc i386 i86pc
I had tried the following ways, it works fine in GNU Linux, but doesn't work in Solaris.
# date
Tue Apr 2 01:01:49 CST... (4 Replies)
Discussion started by: ambious
4 Replies
4. Shell Programming and Scripting
I have run one file.but this file is two different directory is there.I wrote the if loop but one directory to find it the file and another directory is not find.
#!bin/bash
a=/tmp
mau="manual.sh"
if
then
echo `ls -l $mau`
else
echo "file not there"
b=/scr #not find the directory... (1 Reply)
Discussion started by: rajivgandhi
1 Replies
5. Solaris
Currently have an issue were we use a script to load a security .dat key. The script was failing to load stating "Unable to open directory". I ssh'd into the server and performed an ls -la on the /cdrom directory. I show the usual cdrom0 but the directory on the cd should be key but is showing... (0 Replies)
Discussion started by: hypp1e
0 Replies
6. Shell Programming and Scripting
The title says it all. I have a upnp server running fuppes that is connected to my xbox360. In order to see the files on the xbox360 i have to manually update and rebuild the database anytime i add or remove files. I have tried cron jobs to do it every 20 min which works, but if I am streaming... (0 Replies)
Discussion started by: tr6699
0 Replies
7. Shell Programming and Scripting
hi all,
here is the description to my problem.
input parameters: $date1 & $date2
based on the range i need to select the archived files from the archived directory and moved them in to working directory.
can u please help me in writing the code to select the multiple files based on the... (3 Replies)
Discussion started by: bbc17484
3 Replies
8. Shell Programming and Scripting
hi ,
I would like to ask how to get past 5 minutes system time and date, if i have following to get current time.
# get current time
($sec,$min,$hour,$mday,$mon,$year) = localtime(time);
$year = $year + 1900;
$mon = sprintf ("%02s",$mon+1);
$mday = sprintf ("%02s",$mday);
$hour =... (1 Reply)
Discussion started by: rauphelhunter
1 Replies
9. UNIX for Advanced & Expert Users
I am uploading files that need to be processed prior to uploading. I will put the files in a directory. My question is how can I write an easy process to kick off a script once a file has been added? Is there an easy way to determine if a file has been added to a directory?
Thanks (7 Replies)
Discussion started by: goodmis
7 Replies
10. UNIX for Dummies Questions & Answers
I am uploading files that need to be processed prior to uploading. I will put the files in a directory. My question is how can I write an easy process to kick off a script once a file has been added? Is there an easy way to determine if a file has been added to a directory?
Thanks (1 Reply)
Discussion started by: goodmis
1 Replies
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)