[Bash] passing variables to executable doesn't work
Bash version 4.4.20 / Ubuntu 16.0.4
Hello,
I tried to write a script that gathers some data and passes them to an executable.
The executed application answers with an error. The echo output in the script returns correct values.
If I copy/paste the last echo command, it get's executed correctly.
You can't reproduce the error, maybe you can improve the code that it should work then.
without using ls, just using echo so purely pattern matching
I can say echo */ <-- lists directories
but how would I match files? surely something like *!/ or * but neither work ?
it seems like there isn't much that I can put in but surely i should be able to put any ascii... (1 Reply)
Hi everyone,
I have a Linux OS in my PC (older version 9). Its default shell is bash. Whenever I try to run some Perl program it throws error ! eg, if I run this simple PERL program ,
#!/usr/bin/perl
printf "\lHello \n";
$var=3 ;
printf $var;
@list=(1,2,3);
printf "@list";... (6 Replies)
Hi....
cd command is not working when dual string drive/volume name is passed to cd through variables.......
For Ex....
y=/Volumes/Backup\ vipin/
cd $y
the above command gives error.......
anyone with a genuine solution ? (16 Replies)
completion-ignore-case option doesn't work in my version:
/home/user $ echo $BASH_VERSION
3.2.48(1)-release
/home/user $ ls -l *
-rw-r--r-- 1 user user 0 2009-10-18 00:09 somefile
-rw-r--r-- 1 user user 0 2009-10-18 00:09 Somefile
/home/user $ set completion-ignore-case on
But when I... (2 Replies)
I am writing perl script to configure Cisco device but Variables inside Net::Telnet::Cisco Module doesn't work and passed to device without resolving.
Please advise.
here is a sample of script:
use Net::Telnet::Cisco;
$device = "10.14.199.1";
($o1, $o2, $o3, $o4) = split(/\./,$device);... (5 Replies)
Hi,
I'm trying to write a script that checks gvfs to see if a mount exists so I can run it from network-manager's status hooks. I thought I'd pipe the output of gvfs-mount -l to grep for the particular mounts I care about. When I do this in a bash script:
cmnd="gvfs-mount -l | grep -i... (4 Replies)
I'm working on AIX 6, ksh shell. The parameters are some strings quotated by double quotation marks which from a file. They are quotated because there may be spaces in them.
Example:
"015607" "10" " " "A"I want to pass these parameters to a shell function by writing the following command:
... (4 Replies)
Hello Friends,
My bash script is like this
#!/bin/bash
# request Bourne shell as shell for job
#$ -S /bin/bash
# assume current working directory as paths
#$ -cwd
#$ -N rsync-copy
#
# print date and time
date
rsync -rltD --progress "ssh -i /home/myname/.ssh/id_rsa"... (4 Replies)
Hi everyone,
I've an issue trying to soustracte two dates, e.g:
d1=$(date -d "Nov 18, 2017" +%s)
d2=$(date +%s) # Today we are 2017-11-16
echo "$(( (d1 - d2) / 86400 ))"
Output:
1
I don't understand why it doesn't work. for me, it should give "18 - 16 = 2".
Much appreciated... (1 Reply)
Discussion started by: Arnaudh78
1 Replies
LEARN ABOUT CENTOS
rollback_prepared
ROLLBACK PREPARED(7) PostgreSQL 9.2.7 Documentation ROLLBACK PREPARED(7)NAME
ROLLBACK_PREPARED - cancel a transaction that was earlier prepared for two-phase commit
SYNOPSIS
ROLLBACK PREPARED transaction_id
DESCRIPTION
ROLLBACK PREPARED rolls back a transaction that is in prepared state.
PARAMETERS
transaction_id
The transaction identifier of the transaction that is to be rolled back.
NOTES
To roll back a prepared transaction, you must be either the same user that executed the transaction originally, or a superuser. But you do
not have to be in the same session that executed the transaction.
This command cannot be executed inside a transaction block. The prepared transaction is rolled back immediately.
All currently available prepared transactions are listed in the pg_prepared_xacts system view.
EXAMPLES
Roll back the transaction identified by the transaction identifier foobar:
ROLLBACK PREPARED 'foobar';
COMPATIBILITY
ROLLBACK PREPARED is a PostgreSQL extension. It is intended for use by external transaction management systems, some of which are covered
by standards (such as X/Open XA), but the SQL side of those systems is not standardized.
SEE ALSO
PREPARE TRANSACTION (PREPARE_TRANSACTION(7)), COMMIT PREPARED (COMMIT_PREPARED(7))
PostgreSQL 9.2.7 2014-02-17 ROLLBACK PREPARED(7)