linux permissions
permission = read(4) + write(2) + execute(1) ls -l [path] ---------- # file d--------- # directory -rwx------ # owner ----rwx--- # group -------rwx # other chmod [permissions] file (u)ser, (g)roup, (o)ther, (a)ll chmod o+rwx file # add rwx for other chmod o=rw file # set rw for other chmod og-x file # remove x from other and group chmod a+r file # everyone can read # Numeric chmod 724 file # owner=everything, group=writing, other=reading
linux chmod permissions
The three rightmost digits define permissions for the: file user, the group, and others. # Permission rwx Binary 7 read, write and execute rwx 111 6 read and write rw- 110 5 read and execute r-x 101 4 read only r-- 100 3 write and execute -wx 011 2 write only -w- 010 1 execute only --x 001 0 none --- 000
permissions in linux
--- --- --- rwx rwx rwx user group other
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