I do not know if what you just posted is a "loose" interpretation of what you want but not real or you have actually tried to run that command.
You may do it as:
You can not check if the command is successful and then try to pipe it to another program. That's not how it works.
When you use a PIPE both programs run in parallel and the output of the first becomes the input of the second.
I have a series of new machines that are internet facing (have IP's that are accessible via the 'net) and it has internal facing interfaces. I need to be able to communicate back to the internal network to a specific server which processes monitoring and e-mail traffic. I've been told that I should... (3 Replies)
My goal was to find any directories inside of any directory called "09_Client Original" not modified in the last 30 days.
$ find /Volumes/Jobs_Volume/ -type d -name "09_Client Original" -exec find {} -mtime +30 -type d -maxdepth 1 \;
The results of this find are passed along in a perl script... (1 Reply)
This is going to be part of a longer script with more features, but I have boiled it down to the one thing that is presently stumping me. The goal is a script which checks for updates to web pages that can be run as a cron job. The script reads (from a tab-delim file) a URL, an MD5 digest, and an... (1 Reply)
What am I doing wrong here? Or is this not possible?
A bug?
alias f='find . >found 2>/dev/null &'
f ; sleep 20 ; ls -l
-bash: syntax error near unexpected token `;' (2 Replies)
I'm new to Unix, and just had a quick question.
I'm writing a bash script, and I was wondering what proper programming etiquette was for piping. How many pipes is too many pipes?
OLDEST=$(find . -maxdepth 1 -type d -newermt 2012-07-01 ! -newermt
2012-07-30 | xargs ls -1td | tail -2)
echo... (1 Reply)
Using the below code I want to find all .sff files and extract them. This works but it seems very cheap. Is there a safer more efficient way to go about this?
#!/bin/bash
G1=(/home/dirone)
find ${G1} -type f -name \*.sff | xargs python /usr/local/bin/sff_extract.py (3 Replies)
Can you explain what this line of script is doing.
What I have understood is :
-- variable C is the name of a software which is either not installed, so it must be installed or allready installed and then should be update if newer version found
-- branch B="$B $C" is to install the software
--... (4 Replies)
Hi
I am tryin to undertand piping
command1|command2
from what i learn output of cammand 2 is an intput for command 1 right?
If so .
What dose next sequence do
cat f1 >> f2 | grep '^'
I think it takes context of f1 and Concatenate's it to f2 and then looks for ....i don't know..... (7 Replies)
I need to do the following with a find command on my AIX box
Find all files that are -type f
Then do the following steps:-
Take a listing of them, and write them to a log in /directory/backup/log
Tar them up in /directory/backup/tar
and remove the files.
Here is what I have... (22 Replies)
Need help in piping commands using xargs
I have several .tar.gz files that I need to list the folder content in a subdirectory.
For example,
a.tar.gz
b.tar.gz
c.tar.gz
The following command works great for each .tar.gz file but it's a pain to run the tar command for each file.
tar -tf... (11 Replies)
Discussion started by: april
11 Replies
LEARN ABOUT XFREE86
zgrep
ZGREP(1) General Commands Manual ZGREP(1)NAME
zgrep - search possibly compressed files for a regular expression
SYNOPSIS
zgrep [ grep_options ] [ -e ] pattern filename...
DESCRIPTION
Zgrep invokes grep on compressed or gzipped files. These grep options will cause zgrep to terminate with an error code:
(-[drRzZ]|--di*|--exc*|--inc*|--rec*|--nu*). All other options specified are passed directly to grep. If no file is specified, 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 the GREP environment variable is set, zgrep uses it as the grep program to be invoked.
EXIT CODE
2 - An option that is not supported was specified.
AUTHOR
Charles Levert (charles@comm.polymtl.ca)
SEE ALSO grep(1), gzexe(1), gzip(1), zdiff(1), zforce(1), zmore(1), znew(1)ZGREP(1)