10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi ,
I am an Oracle developer. trying to write a shell script to compile all the forms that are modified in last 1 hour.
Script Body
cat cmp.sh
for f in `find ./*fmb* -mmin -60`; do "`frmcmp_batch.sh userid=ba/ba@testdb batch=yes module=$f module_type=form compile_all=yes... (2 Replies)
Discussion started by: imrandec85
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2. Shell Programming and Scripting
Could you let me know if my path is having bourne bash
echo $PATH
/u01/app/oracle/product/10.2.0/db_1/bin:/usr/sbin:/usr/kerberos/bin:/usr/local/bin:/usr/bin:/bin:/usr/X11R6/bin:/home/oracle/bin
$ which bash
/bin/bash
$ which ls
alias ls='ls --color=tty'
/bin/ls
Below is... (3 Replies)
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3. UNIX for Dummies Questions & Answers
$ cat nu
who | wc -l
$ ls -l nu
-rwxr-x--- 1 _ _ 11 Jul 30 12:37 nu //the nu is displayed in green color
$ nu
bash: nu: command not found
I am using a book from 1986 on Unix System V, Release 3, and the Unix system I am connecting to is from my college.
Below is the notes from the book:... (4 Replies)
Discussion started by: chip
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4. Shell Programming and Scripting
can any1 please tell me what is problem with following code:
i=1;
cat test| while read CMD;
do
Var$i=$CMD; or Var$i=$(echo $CMD) ;
let i++
doneI keep getting error :
line 4: Var1=sometext: command not found (2 Replies)
Discussion started by: kashif.live
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5. Linux
I installed in VM the Mandriva Linux.
But when I fire the make command it gives me command not found error.
Seems make is not installed.
I also checked in Mandriva control center and no development package is seen there.
Will pls let me know how to proceed and get make and other development... (2 Replies)
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6. UNIX for Advanced & Expert Users
I have Suse linux-2.6.31.5-0.1.
When I try to set breakpoint in application or kernel modules it gives me command not found error.
For instance
when I typed the command
b xyz.c:47
it gives me an error:
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Discussion started by: rupeshkp728
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7. Shell Programming and Scripting
hello
every time i run the following code
for val in fileX fileY fileZ
do
$val=`ls -l $val | awk '{print $5}'`
done
i got error message command not found , i tried to add ' and " but nothing works
its only worked wen remove $val=
but i want the name of the file and the value
... (9 Replies)
Discussion started by: mogabr
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8. Shell Programming and Scripting
Hello everyone,
I am using Linux and tcsh shell. I am trying to run a free open source program( which is in the form of a binary file), but every time I run it it gives me an error saying:
newhtsg_v1.0:Command not found.
I have set permission also for the same.
What else can I do to make... (4 Replies)
Discussion started by: ad23
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9. Red Hat
Hi,
I am beginer to Linux. I have installed Redhat Linux AS 4.0 on my System.Later I created a User Oracle10g for Installing Oracle.Then I logged onto Oracle10g user and crated a Bash Profile and when I run that profile there was an error in that Profile. from then If I type any of Linux Command... (2 Replies)
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10. UNIX for Dummies Questions & Answers
Hi guys,
i have a script called readnametest.i had written like this
# !/bin/ksh
echo "enter your name please"
read x;
echo " your name is $x"
i am getting an error like "readnametest.ksh: ^M: not found." while executing this one.Could any one please explain me on why this... (4 Replies)
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SYSTEMD.ENVIRONMENT-GENERATOR(7) systemd.environment-generator SYSTEMD.ENVIRONMENT-GENERATOR(7)
NAME
systemd.environment-generator - systemd environment file generators
SYNOPSIS
/lib/systemd/system-environment-generators/some-generator
/usr/lib/systemd/user-environment-generators/some-generator
/run/systemd/system-environment-generators/*
/etc/systemd/system-environment-generators/*
/usr/local/lib/systemd/system-environment-generators/*
/lib/systemd/system-environment-generators/*
/run/systemd/user-environment-generators/*
/etc/systemd/user-environment-generators/*
/usr/local/lib/systemd/user-environment-generators/*
/usr/lib/systemd/user-environment-generators/*
DESCRIPTION
Generators are small executables that live in /lib/systemd/system-environment-generators/ and other directories listed above. systemd(1)
will execute those binaries very early at the startup of each manager and at configuration reload time, before running the generators
described in systemd.generator(7) and before starting any units. Environment generators can override the environment that the manager
exports to services and other processes.
Generators are loaded from a set of paths determined during compilation, as listed above. System and user environment generators are loaded
from directories with names ending in system-environment-generators/ and user-environment-generators/, respectively. Generators found in
directories listed earlier override the ones with the same name in directories lower in the list. A symlink to /dev/null or an empty file
can be used to mask a generator, thereby preventing it from running. Please note that the order of the two directories with the highest
priority is reversed with respect to the unit load path, and generators in /run overwrite those in /etc.
After installing new generators or updating the configuration, systemctl daemon-reload may be executed. This will re-run all generators,
updating environment configuration. It will be used for any services that are started subsequently.
Environment file generators are executed similarly to unit file generators described in systemd.generator(7), with the following
differences:
o Generators are executed sequentially in the alphanumerical order of the final component of their name. The output of each generator
output is immediately parsed and used to update the environment for generators that run after that. Thus, later generators can use
and/or modify the output of earlier generators.
o Generators are run by every manager instance, their output can be different for each user.
It is recommended to use numerical prefixes for generator names to simplify ordering.
EXAMPLES
Example 1. A simple generator that extends an environment variable if a directory exists in the file system
# 50-xdg-data-dirs.sh
#!/bin/bash
# set the default value
XDG_DATA_DIRS="${XDG_DATA_DIRS:-/usr/local/share/:/usr/share}"
# add a directory if it exists
if [[ -d /opt/foo/share ]]; then
XDG_DATA_DIRS=/opt/foo/share:${XDG_DATA_DIRS}
fi
# write our output
echo XDG_DATA_DIRS=$XDG_DATA_DIRS
Example 2. A more complicated generator which reads existing configuration and mutates one variable
# 90-rearrange-path.py
#!/usr/bin/env python3
"""
Proof-of-concept systemd environment generator that makes sure that bin dirs
are always after matching sbin dirs in the path.
(Changes /sbin:/bin:/foo/bar to /bin:/sbin:/foo/bar.)
This generator shows how to override the configuration possibly created by
earlier generators. It would be easier to write in bash, but let's have it
in Python just to prove that we can, and to serve as a template for more
interesting generators.
"""
import os
import pathlib
def rearrange_bin_sbin(path):
"""Make sure any pair of .../bin, .../sbin directories is in this order
>>> rearrange_bin_sbin('/bin:/sbin:/usr/sbin:/usr/bin')
'/bin:/sbin:/usr/bin:/usr/sbin'
"""
items = [pathlib.Path(p) for p in path.split(':')]
for i in range(len(items)):
if 'sbin' in items[i].parts:
ind = items[i].parts.index('sbin')
bin = pathlib.Path(*items[i].parts[:ind], 'bin', *items[i].parts[ind+1:])
if bin in items[i+1:]:
j = i + 1 + items[i+1:].index(bin)
items[i], items[j] = items[j], items[i]
return ':'.join(p.as_posix() for p in items)
if __name__ == '__main__':
path = os.environ['PATH'] # This should be always set.
# If it's not, we'll just crash, we is OK too.
new = rearrange_bin_sbin(path)
if new != path:
print('PATH={}'.format(new))
Example 3. Debugging a generator
SYSTEMD_LOG_LEVEL=debug VAR_A=something VAR_B="something else"
/lib/systemd/system-environment-generators/path-to-generator
SEE ALSO
systemd-environment-d-generator(8), systemd.generator(7), systemd(1), systemctl(1)
systemd 237 SYSTEMD.ENVIRONMENT-GENERATOR(7)