1) Yes, I've seen it a lot.
2) I'm not aware of such University either.
It's a matter of preference which in turn is driven by the known convention of capitalizing all environment variables and shell internal variables.
$CAT UUoC.txt | $GREP stuff | $CUT stuff is definitely more visible and less prone to confusion than $cat UUoC.txt | $grep stuff | $cut stuff.
It also helps when you want to throw a few extra flags into the command. Consider this for example:
I usually prefer GREP=$(which grep) or even GREP=$(which grep 2>/dev/null || echo :) if I want to be extra paranoid, but I only do this when writing shell scripts.
For compiled languages most people I know use #define kVariableName which seems to be pretty standard in C-based languages (I only use Obj-C though).
I need a unix script that check for even or odd. EXAMPLE::::
please enter the number to check: 12
the output: This is an even number
it has to have prompts. (2 Replies)
Hey Guys,,
Have just got started with Unix , I need UNIX Terminal to practise commands.
Does any website host such services ?
Happy Holidays... (9 Replies)
Hello, I have been working on a what I thought was a fairly simple script for installing a software kit on Linux and Unix
I am not new to scripting but am far from being fluent in sh scripting.
any assistance would be appreciated.
I have an odd bug occuring when executing the script.
When... (2 Replies)
Question is title, I don't understand why all examples I am reading return constants error values instead of just exiting under certain conditions... then back in main script test return value and exit if true, to me seems like a lot of extra typing and test conditions which can make for bulky and... (5 Replies)
Is it normal behavior for a shell script that terminates to terminate its parent shell when executed with the "." option?
For example, if I have the example script (we'll name it ex.sh):
#!/bin/sh
if
then
echo "Bye."
exit 2
fi
And I execute it like this:
>./ex.sh
It... (6 Replies)
The code I am using
#!/bin/sh
for FILE in *.cfg; do
awk '{
print;
if ($1 == "host_name") store_name = $2;
if ($1 == "register") { printf("\t\t parents\t\t\t %s-ilo\n", store_name); }
}' "$FILE" > ../new-files/hosts/$FILE
sed -i -e "s/notification_options.*/notification_options... (0 Replies)
I am creating a startup script for an application. This application's startup script is in bash. It will also need to call a perl script (which I will not be able to modify) for the application environment prior to calling the application. The problem is that this perl script creates a new shell... (5 Replies)
Hi folks,
So I wrote a script to run "top", "awk" out values fro the "top" and send the results to a data file.
I then set it to run in cron every 15 minutes.
Now I'm noticing that the script, and it's sub-commands are not always cleanly finishing and, in my investigations, I am also... (11 Replies)
Hi there. I've been forced by circumstance to write an expect script to handle password updates on a number of servers. There's a mix of Solaris 8, 9, 10, RedHat and Ubuntu. There's no chance the client will allow us to hook them up to a directory, so we have to make do.
This script is mostly... (0 Replies)
Hi all,
I have 2 server A and B. B is acting as standby for A.
The cronjobs running in A must not be run in B until failover.
The activation of cronjobs in B can be manual.
In server A, I am doing the following
1) create a cron/job script that does
"crontab -l >... (5 Replies)
Discussion started by: javanoob
5 Replies
LEARN ABOUT HPUX
gzgrep
GZGREP(1) General Commands Manual GZGREP(1)NAME
gzgrep, gzegrep, gzfgrep - search possibly compressed files for a regular expression
SYNOPSIS
gzgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
gzgrep is used to invoke the grep on compress'ed or gzip'ed files. All options specified are passed directly to grep. If no file is speci-
fied, then the standard input is decompressed if necessary and fed to grep. Otherwise the given files are uncompressed if necessary and
fed to grep.
If gzgrep is invoked as gzegrep or gzfgrep then egrep or fgrep is used instead of grep. If the GREP environment variable is set, gzgrep
uses it as the grep program to be invoked. For example:
for sh: GREP=fgrep gzgrep string files
for csh: (setenv GREP fgrep; gzgrep string files)
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), egrep(1), fgrep(1), gzdiff(1), gzmore(1), gznew(1), gzforce(1), gzip(1), gzexe(1)ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+--------------------+-----------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+--------------------+-----------------+
|Availability | SUNWgzip |
+--------------------+-----------------+
|Interface Stability | External |
+--------------------+-----------------+
NOTES
Source for gzip is available in the SUNWgzipS package.
GZGREP(1)