I'm not very familiar with the ssh command. When I tried to set a variable and then echo its value on a remote machine via ssh, I found a problem. For example,
$ ITSME=itsme
$ ssh xxx.xxxx.xxx.xxx "ITSME=itsyou; echo $ITSME"
itsme
$ ssh xxx.xxxx.xxx.xxx 'ITSME=itsyou; echo $ITSME'
itsyou
$... (3 Replies)
Hi,
I am trying to write the following command as an alias in my .bashrc file.
bjobs -u all | awk '{if (NR > 1) {username++;}}END{{print"\nJOBS BY USER:\n"} for (i in username) {print username,i;}{print"\n Total Jobs=",NR-1,"\n" }}'
The command simply puts how many jobs each user is... (2 Replies)
Hi guys, I have a sed line in double quotes which works fine, but I want it to be in single quotes
here is the sed line
sed "/abc_def/s/\'.*\'/\'\${abc_def}\'/"
can some one give the equivalent to the above script in single quotes
Thanks a ton (5 Replies)
Unix superusers,
I am new to unix but would like to learn more about grep. I am very familiar with regular expressions as i have used them for searching text files in windows based text editors. Since I am not very familiar with Unix, I dont understand when one should use GREP with the... (2 Replies)
Hello. I'm trying to write a bash script that uses GNU screen and have hit a brick wall that has cost me many hours... (I'm sure it has something to do with quoting/globbing, which is why I post it here)
I can make a script that does the following just fine:
test.sh:
#!/bin/bash
# make... (2 Replies)
If one:
$ find -name 'some expression' -type f > newfile
and then subsequently wants to create an alias file from each pathname the find command retrieved and the > placed within 'newfile', how would one do this? Ideally, the newly created alias files would all be in one directory.
I am... (3 Replies)
Hi,
Trying to change the prompt. I have the following code.
export PS1='
<${USER}@`hostname -s`>$ '
The hostname is not displayed
<abc@`hostname -s`>$ uname -a
AIX xyz 1 6 00F736154C00
<adcwl4h@`hostname -s`>$
If I use double quotes, then the hostname is printed properly but... (3 Replies)
Hello everyone,
I am working on a file with thousands of lines and instead of manually removing them I need a script to remove quotes within quotes. For example a line may have something such as this:
"Hey, I was ready to go on stage or "break a leg", but I failed miserably."
So I need to... (15 Replies)
Hi All,
I'm unable to load the data using sql loader where there are double quotes within the double quotes As these are optionally enclosed by double quotes.
Sample Data :
"221100",138.00,"D","0019/1477","44012075","49938","49938/15043000","Television - 22" Refurbished - Airwave","Supply... (6 Replies)
Hello,
I'd like to have an alias to view some processes sorted:
I have:ps -ef | grep pmon | awk -F" " '{ print $8" "$0 }' | sort | cut -d" " -f2- | grep -v "grep pmon" It doesn't work, however, if I put it as alias because on acutes insize awk:alias pmon='ps -ef | grep pmon | awk -F" " '{ print... (4 Replies)
Discussion started by: JackK
4 Replies
LEARN ABOUT CENTOS
yum-aliases
yum-aliases(1)yum-aliases(1)NAME
yum aliases plugin
SYNOPSIS
yum [options] alias
DESCRIPTION
This plugin changes other commands in yum, much like the alias command in bash. There are a couple of notable differences from shell style
aliases though. The alias command has three forms:
* alias
* alias command
* alias command result
The first form lists all current aliases with their final result, the second form looks up a "command" and shows it's final result or an
error message. The last form creates a new alias.
Explanation of alias to final result conversion
When you type an aliased command, like "yum --disableexcludes UPT lsu" using the default aliases, the yum-aliases plugin first takes the
first "command", by skipping over any options, and then looks up the result (in this case "UPT" is converted to "--enablerepo=updates-test-
ing"). If there is a match, then it will replace the aliased "command" in the argument list and try again (again skipping over any
options). By convention, in the default aliases list, alias "commands" that are in all CAPS only add options so you can join together a
chain of them before any real command or aliased command.
There are two things that can alter the above, if you have the "recursive" configuration option set to off then alias processing will stop
after the first alias to command substitution. Also, like in shell aliases, if the result starts with then alias processing will stop.
EXAMPLES
To create a new alias command called "rm" which does the same thing as the command "remove" use:
yum alias rm remove
To always add the --skip-broken --disableexcludes=all --obsoletes options to the update command (but leaving the upgrade option alone), you
could use:
yum alias update update --skip-broken --disableexcludes=all --obsoletes
To override the default "up" alias to use the above update command, and never ask for confirmation, you could use:
yum alias up update -y
AUTHORS
James Antill <james@and.org>
SEE ALSO yum-utils(1)yum(1)James Antill 31 March 2008 yum-aliases(1)