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From all PDF files in all subdirectories, extract two metadata fields (here: Creator and Producer) into a CSV table
This is sample output - yours may be different.
0

echo "File;Creator;Producer";find . -name '*.pdf' -print0 | while IFS= read -d $'\0' line;do echo -n "$line;";pdfinfo "$line"|perl -ne 'if(/^(Creator|Producer):\s*(.*)$/){print"$2";if ($1 eq "Producer"){exit}else{print";"}}';echo;done 2>/dev/null

langec · 2020-12-17 21:08:55 2168
Corrupting Filesystem Metadata

A rare and unique way to do something different, use it on your own risk! Show Sample Output
This is sample output - yours may be different.
```
Looking for love!
```
0

debugfs -w /dev/sdX1 -R "set_inode_field /root mode 0000"

wuseman1 · 2024-08-26 18:14:13 22

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Multiple variable assignments from command output in BASH

This version uses read instead of eval.

subtraction between lines

It's allways strange for me to see sed and awk in the same command line if you can avoid it

RTFM function

Some commands have more information on 'info' than in the man pages

Find the package that installed a command

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Returns true (0) if the string is into $var, or false (1) if not.

Convert CSV to JSON

Replace 'csv_file.csv' with your filename.

cloning partition tables under Solaris

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Waits for all pings to complete and returns ip with mac address

count and number lines of output, useful for counting number of matches

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Find broken symlinks and delete them

If you don't want to delete them, but just want to list them, do $ find -L /path -type l If you want to delete them with confirmation first, do $ find -L /path -type l -exec rm -i {} + Using the -L flag follows symlinks, so the -type l test only returns true if the link can't be followed, or is a symlink to another broken symlink.

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