tmpfs                5120       0      5120   0% /run/lock                      /dev/nvme0n1p15    126678    6016    120662   5% /boot/efi                      admin@i-02b891be31c49d985:~$ df -u                                              df: invalid option -- 'u'                                                       Try 'df --help' for more information.                                           admin@i-02b891be31c49d985:~$ du                                                 11140   ./agent                                                                 4       ./.ansible/tmp                                                          8       ./.ansible                                                              4       ./data                                                                  8       ./.config/asciinema                                                     12      ./.config                                                               8       ./.ssh                                                                  5256228 .                                                                       admin@i-02b891be31c49d985:~$                                                    

 -h, --help <category> Get help for commands                                     -i, --include       Include protocol response headers in the output             -o, --output <file> Write to file instead of stdout                             -O, --remote-name   Write output to a file named as the remote file             -s, --silent        Silent mode                                                 -T, --upload-file <file> Transfer local FILE to destination                     -u, --user <user:password> Server user and password                             -A, --user-agent <name> Send User-Agent <name> to server                        -v, --verbose       Make the operation more talkative                           -V, --version       Show version number and quit                                                                                                               This is not the full help, this menu is stripped into categories.               Use "--help category" to get an overview of all categories.                     For all options use the manual or "--help all".                                 admin@i-0bed7ad43768ade6d:~$ man ue                                             

Or you can pipe the result to 'wc -l':                                                                                                                                  cat Fitness_Galaxy AAA United_MileagePlus | grep "John Smith" | wc -l   admin@i-0d44ab5bf75fdb3b7:~/clmystery$ cd mystery                               admin@i-0d44ab5bf75fdb3b7:~/clmystery/mystery$ grep "Annabel" reople            grep: reople: No such file or directory                                         admin@i-0d44ab5bf75fdb3b7:~/clmystery/mystery$ ls                               crimescene  interviews  memberships  people  streets  vehicles                  admin@i-0d44ab5bf75fdb3b7:~/clmystery/mystery$ grep "Annabel" people            Annabel Sun     F       26      Hart Place, line 40                             Oluwasegun Annabel      M       37      Mattapan Street, line 173               Annabel Church  F       38      Buckingham Place, line 179                      Annabel Fuglsang        M       40      Haley Street, line 176                  admin@i-0d44ab5bf75fdb3b7:~/clmystery/mystery$ cd streets                       admin@i-0d44ab5bf75fdb3b7:~/clmystery/mystery/streets$ haed -n 40 streets/Hart_P

                                                                                       Here, the second and the third argument of open(2) are decoded by breakin       traditional or native usage differs from ANSI or POSIX, the latter forms                                                                                        Structure  pointers  are dereferenced and the members are displayed as ap       mand "ls -l /dev/null" is captured as:                                                                                                                              lstat("/dev/null", {st_mode=S_IFCHR|0666, st_rdev=makedev(0x1, 0x3),                                                                                        Notice how the 'struct stat' argument is dereferenced and how each member       and  numeric values.  Also notice in this example that the first argument       the system call fails, arguments may not always be dereferenced.  For exa                                                                                           lstat("/foo/bar", 0xb004) = -1 ENOENT (No such file or directory)     Manual page strace(1) line 17 (press h for help or q to quit)