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Questions tagged [zcat]

Unix/Linux command that expands a compressed file to standard output.

80 questions
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BASH how to filenames from a file and zcat them

Suppose I have a directory with contents like this: $ ls file1.csv.gz file2.csv.gz file3.csv.gz file4.csv.gz listOfFiles.txt listOfFiles.txt contains a list of the files which I want to zcat and pipe to awk to process their contents. For instance,…
Rusty Lemur
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syntax error near unexpected token `(' when using multiple input streams from zcat in Python subprocess

I ran this in Python 3.5: import subprocess subprocess.run( 'some_command --option <(zcat some_file_1.gz) <(zcat some_file_2.gz)', shell=True ) Got this error: /bin/sh: -c: line 0: syntax error near unexpected token `(' Any help will be…
Xiaoqing Claire Rong-Mullins
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zcat failing in ansible-playbook

I am trying to import the schema it is failing , please suggest me to solve this error - name: Import the initial schema command: zcat /usr/share/doc/zabbix-server-mysql-3.2.5/create.sql.gz | mysql -uzabbix -p zabbix TASK: [zabbix-server | Import…
user6826691
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Zcat with lines' indexes

How can I see the indexes of lines with zcat? I tried to find a flag of zcat, but didn't find one that show lines' numbers. Example: My file contains these lines: Hello everybody! aaa bbb aaa Hello What I want to get from this command: zcat file |…
pnina
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Zcat + awk with absolute path

In my "test.tar.gz" there is a text file : "test.txt" with : col1 {tab} col2 {tab} col3 - The problem is, when I run it : zcat ./folder1/test.tar.gz | awk -F '\t' '{print $1, $3}' It returns : test.txt So if I add : zcat…
robinwood13
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Combining compressed Gzipped Text Files using Java

my question might not be entirely related to Java but I'm currently seeking a method to combine several compressed (gzipped) textfiles without the requirement to recompress them manually. Lets say I have 4 files, all text that is compressed using…
w3b1x
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Reconstructing an archived SQLite3 database file

I'm using the method described under the heading Converting An Entire Database To An ASCII Text File on this page to archive a sqlite3 database file. Archiving the database file works fine: $ echo '.dump' | sqlite3 store.db | gzip -c…
Ross
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Extract and count value from standard .gz log files on an hourly basis

I'm trying to count the number of occurrences of a particular string from a bunch of .gz logfiles on an hourly basis. Each logfile statement starts with the following time format: 2013-11-21;09:07:23.433. For example, to be more clear, find the…
codehammer
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Http get ungzip response in bash

I need to manually ungzip response of the following page: http://muaban.net/ho-chi-minh.html I'm doing echo -e "GET /ho-chi-minh.html HTTP/1.1\r\nHost: muaban.net\r\nAccept-Encoding: gzip\r\n" | nc muaban.net 80 > response.txt until response…
spacevillain
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How to use zcat with regex in perl?

I have compressed .gz files that I want to open by using: ./open.pl file.gz Basically my goal is to only print out certain lines in the zip file that match my regex...The files are big so I just want to output to stdout for now...How would I do…
user1224478
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llseek return ESPIPE when calling zcat all.tgz | ./cycletee

I modified GNU tee to cycletee Source Code (You can download the binary from https://github.com/vls/cycletee/tree/master/bin) What it does can be explained by the following example: seq 10 | cycletee 1.txt 2.txt 3.txt cat 1.txt // prints 1, 4, 7,…
ukessi
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Process substitution tcpdump script error

If I write the following command in a terminal it work perfectly tcpdump -w 1.pcap -nnr <( zcat /work/save1.pcap.gz ) '((tcp[13]==2 or tcp[13]==4) and (dst port 80)) or (udp and dst port 5060)' If I put it in a script I get an error like…
papafe
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Segmentation fault 11, zcat pipe into postgresql 9.0.5 (Lion)

I have a bash script as such: GITUSER="mygituser" DBUSER="mysitedbuser" DB="mysitedb" SITE="mysite.com" REPO="/var/git/myproject.git" # on the server dropdb -U $DBUSER $DB && echo "remote db dump (gzip)" && F=`ssh $GITUSER@$SITE…
Calvin Cheng
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Concatenate a csv file in archive

I stumble with a problem. I need to read a .csv table in an archive without extracting it. When I try to do that, I face metadata bits in the beginning of the file. ➜ dir ls people-10000.tar.gz ➜ dir zcat people-10000.tar.gz | head…
Artem Novak
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Looking for a specyfic message in zipped pcap files

I have around 7200 compressed .pcap files. Each is compressed into a separate .gz file. I need to look for a specific string in packet data details. I would like to write a command to do that. At the moment all I have is: zcat 20230212*.pcap.gz |…
cinosz
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