19 results

• Force exit code 0

  To force a command to return success, for example, an rm command that might fail but you don't care if it does, just add'||:' to the end rm nonexistantfile.txt||: This will force an

  https://unix.fandom.com/wiki/Force_exit_code_0

• Harvest adding ^M to files

  In case you got problems with Harvest, this link might help you There's the full version in case you dont have a PDF viewer. Getting rid of unwanted^M character Posted by Ken Strobel

  https://unix.fandom.com/wiki/Harvest_adding_^M_to_files

• Obtain a complete xml tag

  This is an example XML file?xml version="1.0"? catalog book id="bk101" authorGambardella, Matthew/author titleXML Developer's Guide/title genreComputer/genre price44.95/price publish_date2000-10-01/publish_date descriptionAn in

  https://unix.fandom.com/wiki/Obtain_a_complete_xml_tag

• Search for ^M in files

  When editing files in Windows, the resulting files will have^M control characters. Most of the time, this will render the file useless on Unix You can solve that easily using the dos2unix (or dos2ux

  https://unix.fandom.com/wiki/Search_for_^M_in_files

• Obtaining lines from a text file where a column has some value

  You have file comma separated values. You need certain rows where a(some) specific column(s) has some value. awk -F',''($3~ "VALUE"){print$3}' File.csv awk -F',''($3~ "VALUE"){print$0}' File.csv awk -F

  https://unix.fandom.com/wiki/Obtaining_lines_from_a_text_file_where_a_column_has_some_valu

• How to know column headers positions

  Use this perl command perl -e'{$file="test.txt";$lin=1;$sep=";"} print++$i."\t$_$/"foreach(split/$sep/,qx[head -$lin$file|tail -1])' Given a file with this text on the 1st line: Name

  https://unix.fandom.com/wiki/How_to_know_column_headers_positions

• X11 Forwarding

  Run ssh -X user@remoteip ↑ https://security.stackexchange.com/a/14817/147346

  https://unix.fandom.com/wiki/X11_Forwarding

• Installing CPAN module with all dependencies

  To stop CPAN from asking'yes/no' when installing a module, use this command. PERL_MM_USE_DEFAULT=1 perl -MCPAN -e'install My::Module' (Works in bash only)

  https://unix.fandom.com/wiki/Installing_CPAN_module_with_all_dependencies

• Append newline to files with incomplete last line

  tail -1c FileName.ext| wc -l echo FileName.ext

  https://unix.fandom.com/wiki/Append_newline_to_files_with_incomplete_last_line

• NFS on a VPS

  You can't use regular NFS on a Virtual Private Server. For that, you must use UNFS. Install UNFS and configure NFS normally.

  https://unix.fandom.com/wiki/NFS_on_a_VPS

• Is my Solaris machine 32 or 64 bit?

  Execute this command/usr/bin/isainfo -b

  https://unix.fandom.com/wiki/Is_my_Solaris_machine_32_or_64_bit?

• Which directory is heavier

  If you have lots of directories and want to know which one is heavier (has more MB of data) just use du (disk usage) Example dir_A+---A1+---A2+---A3+---B1

  https://unix.fandom.com/wiki/Which_directory_is_heavier

• Unzip and CPAN

  If you receive the following message in CPAN Cannot unzip, no unzip program available On a Debian based system, follow these steps to solve it sudo apt-get install unzip, whereis unzip (write down this

  https://unix.fandom.com/wiki/Unzip_and_CPAN

• Find how much space is used by a directory

  Go to the directory you want to weight with cd commands. And then execute. du -h

  https://unix.fandom.com/wiki/Find_how_much_space_is_used_by_a_directory

• How to fix numpad in ubuntu when it stops working

  Ubuntu users (and possibly other GNOME users): Has your numpad randomly stopped working? This has happened to me, and a number of other Ubuntu users. It's really easy to fix. Go to System - Preferences

  https://unix.fandom.com/wiki/How_to_fix_numpad_in_ubuntu_when_it_stops_working

• Changing directories

  cd:Go to your$HOME directory, cd -: (cd, space, and a dash) Go to the previous directory. (like going back in history in a browser), pushd directory:Store directory in a stack, popd:Pop a directory

  https://unix.fandom.com/wiki/Changing_directories

• Determine if a file exists

  The unix command test allows you to do that, among other things test -e Filename&& echo'YES'|| echo'NO' In my case, i tried to make a file list in a text file and check

  https://unix.fandom.com/wiki/Determine_if_a_file_exists

• Perform a task on a whole directory

  Those commands will work on the current dir and the subdirs too. find. -print| xargs digest -a md5 find. -print| egrep -v'^\.$'| xargs digest -a md5 find. -print| xargs touch

  https://unix.fandom.com/wiki/Perform_a_task_on_a_whole_directory

• Unix Wiki

  Got a nice one-liner or tips? Put them here! Use this link to start creating articles. LIST OF ALL ARTICLES

  https://unix.fandom.com/wiki/Unix_Wiki