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Suat Yazıcı
Asked: 2017-01-06 22:40:03 +0800 CST

Extract specific Z file method

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I downloaded files from ftp://cddis.nasa.gov/gnss/products/ionex via 

wget -r -nc ftp://cddis.nasa.gov/gnss/products/ionex

distribution by years from 1998 to 2016 and per years contain 365 or 366 days

It contains these files (or similar) for each day

I want to extract only the files beginning with "codg"

ftp

1 Answers

  1. Best Answer

    Create a simple script which will extract files from the current directory.

    cat > /tmp/extract.sh <<'EOF'
#!/bin/bash
for x in "$@"; do
  uncompress -f "${x}"
  rm -f "${x}"
done
EOF
chmod 755 /tmp/extract.sh

    Then use a find command to iterate through the directories to do the operation of that script on every file.

    find . -type f -name 'codg*.Z' -execdir /tmp/extract.sh {} +

    The find command should be executed from the directory of your downloaded files. See find(1) man page and understand the options before executing.

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