Hi,
I have below shell script..
When i execute the script /tmp/1.sh i am getting the output like below..
But i want the output like
I am not getting the desired ouptput since "APPLIED TIME" have space in between words.
Please help how can i get desired ouptput... i.e.,
Last edited by Franklin52; 06-25-2013 at 09:22 AM..
Reason: Please use code tags for data and code samples
Hi All,
I am pasting my code below
if # e means file exists
then
echo OFR_Configlist exists >> OFR_Backup_Configfiles.log
else
echo OFR_Configlist Not exists >> OFR_Backup_Configfiles.log
exit
fi
How can i show the echo message in console also at the same time?
I dont want to write... (3 Replies)
Hi,
Good morning. Would you please explain to me what does it mean by the following command.
echo "$$ $# $@" >> /opt/ftp_generic_send.log
I know that something is being directed to log file, but not sure what exactly mean by those $$ and $# and $@ means.
Thank you for your help.... (3 Replies)
Hi all,
I am executing a Oracle SQL statement in a shell script and spooling the output of the query into a File with spool command.
I want to ensure that only output of the query appears in file excluding the SQL statement but even set echo off command is not working.
Please help (7 Replies)
Hi Friends,
I am trying a very simple thing to print through bash shell scripting using echo but failing. My script is-
A=Abha
B=Biha
C=2011
D=5
echo " The name is $A_$B$C0$D"
It should print-
"The name is Abha_Biha201105"
but it's printing something else. Is my script wrong?... (2 Replies)
Hi All
I want to use the echo command to had some lines to a file but the lines i want to have contain " and ;
here is my command
system("echo user_pref("accessibility.typeaheadfind.flashBar", 0); > $profile");
but i think there are too many " and so it barfs
n e ideas
thanks
A (5 Replies)
Hi All
I have the big statement which needs to be appended to the file MANUALLY without opening the file.
So, i tried with echo command
echo " failure ( 4446): for host xx.xx.xx.xxx trying to GET /index.html, wl-proxy reports: exception occurred for backend host 'xx.xx.xxx.xx/12210/12210':... (11 Replies)
Hello
i am trying to do some calculation from output command
for example
ls -l
if
then
echo "error"
else
echo "$"
fi
its something like this
which get strings from output command and try to sum total lines of this string if exceed certain number it display error
if not it... (3 Replies)
Hi All,
I am using the below script which has awk command, but it is not returing the expected result. can some pls help me to correct the command.
The below script sample.ksh should give the result if the value of last 4 digits in the variable NM matches with the variable value DAT. The... (7 Replies)
Hello,
I have written a command n shell script :
srvctl relocate service -d t1 -s s1 -i i1 -t t1 -f
If the above command executes successfully without error I need to echo
"Service relocated successfully
and If it errors out I need to trap the errors in a file and also need to make... (1 Reply)
Discussion started by: Vishal_dba
1 Replies
LEARN ABOUT PLAN9
flock
FLOCK(1) User Commands FLOCK(1)NAME
flock - manage locks from shell scripts
SYNOPSIS
flock [options] file|directory command [arguments]
flock [options] file|directory -c command
flock [options] number
DESCRIPTION
This utility manages flock(2) locks from within shell scripts or from the command line.
The first and second of the above forms wrap the lock around the execution of a command, in a manner similar to su(1) or newgrp(1). They
lock a specified file or directory, which is created (assuming appropriate permissions) if it does not already exist. By default, if the
lock cannot be immediately acquired, flock waits until the lock is available.
The third form uses an open file by its file descriptor number. See the examples below for how that can be used.
OPTIONS -c, --command command
Pass a single command, without arguments, to the shell with -c.
-E, --conflict-exit-code number
The exit code used when the -n option is in use, and the conflicting lock exists, or the -w option is in use, and the timeout is
reached. The default value is 1.
-F, --no-fork
Do not fork before executing command. Upon execution the flock process is replaced by command which continues to hold the lock.
This option is incompatible with --close as there would otherwise be nothing left to hold the lock.
-e, -x, --exclusive
Obtain an exclusive lock, sometimes called a write lock. This is the default.
-n, --nb, --nonblock
Fail rather than wait if the lock cannot be immediately acquired. See the -E option for the exit code used.
-o, --close
Close the file descriptor on which the lock is held before executing command. This is useful if command spawns a child process
which should not be holding the lock.
-s, --shared
Obtain a shared lock, sometimes called a read lock.
-u, --unlock
Drop a lock. This is usually not required, since a lock is automatically dropped when the file is closed. However, it may be
required in special cases, for example if the enclosed command group may have forked a background process which should not be hold-
ing the lock.
-w, --wait, --timeout seconds
Fail if the lock cannot be acquired within seconds. Decimal fractional values are allowed. See the -E option for the exit code
used. The zero number of seconds is interpreted as --nonblock.
--verbose
Report how long it took to acquire the lock, or why the lock could not be obtained.
-V, --version
Display version information and exit.
-h, --help
Display help text and exit.
EXAMPLES
shell1> flock /tmp -c cat
shell2> flock -w .007 /tmp -c echo; /bin/echo $?
Set exclusive lock to directory /tmp and the second command will fail.
shell1> flock -s /tmp -c cat
shell2> flock -s -w .007 /tmp -c echo; /bin/echo $?
Set shared lock to directory /tmp and the second command will not fail. Notice that attempting to get exclusive lock with second
command would fail.
shell> flock -x local-lock-file echo 'a b c'
Grab the exclusive lock "local-lock-file" before running echo with 'a b c'.
(
flock -n 9 || exit 1
# ... commands executed under lock ...
) 9>/var/lock/mylockfile
The form is convenient inside shell scripts. The mode used to open the file doesn't matter to flock; using > or >> allows the lock-
file to be created if it does not already exist, however, write permission is required. Using < requires that the file already
exists but only read permission is required.
[ "${FLOCKER}" != "$0" ] && exec env FLOCKER="$0" flock -en "$0" "$0" "$@" || :
This is useful boilerplate code for shell scripts. Put it at the top of the shell script you want to lock and it'll automatically
lock itself on the first run. If the env var $FLOCKER is not set to the shell script that is being run, then execute flock and grab
an exclusive non-blocking lock (using the script itself as the lock file) before re-execing itself with the right arguments. It
also sets the FLOCKER env var to the right value so it doesn't run again.
EXIT STATUS
The command uses sysexits.h return values for everything, except when using either of the options -n or -w which report a failure to
acquire the lock with a return value given by the -E option, or 1 by default.
When using the command variant, and executing the child worked, then the exit status is that of the child command.
AUTHOR
H. Peter Anvin <hpa@zytor.com>
COPYRIGHT
Copyright (C) 2003-2006 H. Peter Anvin.
This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
LAR PURPOSE.
SEE ALSO flock(2)AVAILABILITY
The flock command is part of the util-linux package and is available from Linux Kernel Archive <https://www.kernel.org/pub/linux/utils
/util-linux/>.
util-linux July 2014 FLOCK(1)