The if command needs a list of commands executed. man bash:
Quote:
if list; then list; [ elif list; then list; ] ... [ else list; ] fi
The if list is executed. If its exit status is zero, the then list is executed.
In the if list, you can use normal commands (e.g. scp), the [[ compound command, or the test and [ builtin commands which in turn need "conditional expressions".
You don't deploy either. [ [ is not a valid construct, and your shell will have said so. Even if using the correct [[ , it would interpret scp as a string, not as a command to be executed.
Try (untested)
this statement "Be sure to have /usr/bin before /usr/local/bin in your $PATH" is because, if u have any files in bin directory, /usr/local/bin will be the first place to look at instead of /usr/bin. BUT, /usr/local/bin has one more descending directory to go , therefore /usr/bin has to come before... (2 Replies)
Hi,
I was wondering if it possible to get the path of a variable and compare that to something. Basically I want to write a script that checks if my $JAVA_HOME is correct and if not then it sets it. So far I have...
if ]
then
export JAVA_HOME='/pathhere'
echo JAVA_HOME='/pathhere'
fi
... (6 Replies)
Hi,
I'm trying to write a bit of code that will check if a file exists and then archives the file
Im trying to use the following if statement without success..
if
then
mv filename archive/filename
else
echo "no filename exists"
fi
Should the file name be... (3 Replies)
Hi,
Am trying to execute certain commands if the condition satisfied, but i feel i am making some mistakes in the usage of if statement
here is the code
#!/bin/ksh
SIZE=$(ls -ltr /aemu/ws/DN.txt | tr -s ' ' | cut -d ' ' -f 5)
filename=`TZ=CST+24 date +%Y%m%d`
ZERO=0
if
then
cp... (5 Replies)
Hi All,
If i run below copy command, it works absolutely fine,
/opt/csw/bin/scp axetlxyz01:/opt/data/test/QURIES* ./input
I want to make the above line better, by adding an IF statement, want to check if there is any file exists with name QURIES*.* then i need to copy that.
if
... (7 Replies)
my user copy large files, and it's take 10min for file to be copied to the server (/tmp/user/ files/), if in the meantime start my scheduled script, then it will copy a part of some file to server1
my idea is to check the file size twice in a short period (1-2 seconds) of time, then compare, if... (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:
Write a script that performs a post processing action:
The run time environment of the script has the... (2 Replies)
In shell script, I want to transfer files continuously and make sure transfer is successful.
Please advise... how to make sure ftp transfer is successful?
Also is there any option such as sftp -b where I can pass multiple put <file name> commands to ftp
Thanks! (1 Reply)
I wish to check two conditions inside the if statement
Condition 1: The two file contents should be identical // using cmp command for this.
Condition 2: The two filenames should NOT be the same.
This is what i did in vain.
if ]; then
where entry1 and entry2 are
ls *.txt | while... (7 Replies)
Discussion started by: mohtashims
7 Replies
LEARN ABOUT SUNOS
onintr
trap(1) User Commands trap(1)NAME
trap, onintr - shell built-in functions to respond to (hardware) signals
SYNOPSIS
sh
trap [ argument n [n2...]]
csh
onintr [-| label]
ksh
*trap [ arg sig [ sig2...]]
DESCRIPTION
sh
The trap command argument is to be read and executed when the shell receives numeric or symbolic signal(s) (n). (Note: argument is scanned
once when the trap is set and once when the trap is taken.) Trap commands are executed in order of signal number or corresponding symbolic
names. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. An attempt to trap on signal 11
(memory fault) produces an error. If argument is absent all trap(s) n are reset to their original values. If argument is the null string
this signal is ignored by the shell and by the commands it invokes. If n is 0 the command argument is executed on exit from the shell. The
trap command with no arguments prints a list of commands associated with each signal number.
csh
onintr controls the action of the shell on interrupts. With no arguments, onintr restores the default action of the shell on interrupts.
(The shell terminates shell scripts and returns to the terminal command input level). With the - argument, the shell ignores all inter-
rupts. With a label argument, the shell executes a goto label when an interrupt is received or a child process terminates because it was
interrupted.
ksh
trap uses arg as a command to be read and executed when the shell receives signal(s) sig. (Note that arg is scanned once when the trap is
set and once when the trap is taken.) Each sig can be given as a number or as the name of the signal. trap commands are executed in order
of signal number. Any attempt to set a trap on a signal that was ignored on entry to the current shell is ineffective. If arg is omitted
or is -, then the trap(s) for each sig are reset to their original values. If arg is the null (the empty string, e.g., "" ) string then
this signal is ignored by the shell and by the commands it invokes. If sig is ERR then arg will be executed whenever a command has a non-
zero exit status. If sig is DEBUG then arg will be executed after each command. If sig is 0 or EXIT for a trap set outside any function
then the command arg is executed on exit from the shell. The trap command with no arguments prints a list of commands associated with each
signal number.
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 csh(1), exit(1), ksh(1), sh(1), attributes(5)SunOS 5.10 23 Oct 1994 trap(1)