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it-tricks [2021/04/07 10:24]
127.0.0.1 external edit 		it-tricks [2023/03/14 15:46]
vodrazka [TAR archive mounting]
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 ===== LaTeX, pdf ===== ===== LaTeX, pdf =====
-  * see also [[tex::triky]]+  * see also [[tex::triky]] and [[internal:publikace#collaborative-writing]]
   * [[http://mg.readthedocs.io/latexmk.html|latexmk]] can be used with ''-pdf -pvc'', so whenever you save a ''tex'' file, the corresponding ''pdf'' will be regenerated (and your pdf viewer will refresh). Other useful options are ''-interaction=nonstopmode -synctex=1'', see e.g. [[https://tex.stackexchange.com/questions/118489/what-exactly-is-synctex|synctex]]   * [[http://mg.readthedocs.io/latexmk.html|latexmk]] can be used with ''-pdf -pvc'', so whenever you save a ''tex'' file, the corresponding ''pdf'' will be regenerated (and your pdf viewer will refresh). Other useful options are ''-interaction=nonstopmode -synctex=1'', see e.g. [[https://tex.stackexchange.com/questions/118489/what-exactly-is-synctex|synctex]]
   * [[https://www.pdflabs.com/docs/pdftk-cli-examples/|pdftk]] for merging and splitting pdf files (and much more) from the command line   * [[https://www.pdflabs.com/docs/pdftk-cli-examples/|pdftk]] for merging and splitting pdf files (and much more) from the command line
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 ===== TAR archive mounting ===== ===== TAR archive mounting =====
-If you work with data consisting of many small files, you **should** store them in tar archives to save inodes. There is a way to mount a tar archive to a specific directory in the simmilar way you mount ISO image. You can use the following wrapper script to //mount// (read-only) ARCHIVE to DIRECTORY:+If you work with data consisting of many small files, you **should** store them in tar archives to save inodes and use LUSTRE filesystem efficiently. There is a way to mount a tar archive to a specific directory in a similar way you would mount an ISO image. You can use this command to //mount// (read-only) ARCHIVE (possibly compressed) to DIRECTORY:
  
-  /opt/bin/tarmount -a ARCHIVE DIRECTORY+  /opt/bin/tarmount ARCHIVE DIRECTORY
  
 and //umount// when you finish your work: and //umount// when you finish your work:
  
-  /opt/bin/tarmount DIRECTORY+  /opt/bin/tarmount -u DIRECTORY 
 + 
 +If you mount your data in this way, there is only one //open// operation instead of thousands or millions of such operations when opening each file separately. This will positively affect runtime when your data is stored on the LUSTRE filesystem. 
 + 
 +Run the command with //--help// option to see instructions for more advanced usage. The original tool can be obtained [[https://github.com/mxmlnkn/ratarmount | here]]. 
 +It can be installed as [[https://appimage.org | AppImage]].
  
-You can also use the original tool called [[https://github.com/mxmlnkn/ratarmount | ratarmount]] directly through the link: 
  
-  /opt/bin/tarmounter  
  
 ===== Other ===== ===== Other =====

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