| at |
execute command at specified time at 3am <commands |
| bc |
calculator |
| cmp |
determine if two files have exact same contents |
| du -sh * |
list directory contents and their sizes |
| diff |
you know files are different; how do they differ? |
| grep |
grep ‘pattern’ file |
| ls |
-u (used) -t (MRU) -r (reverse) |
| nohup |
nohup command & run command even on logout |
| sort |
-r (reverse) -n (numeric) -f (fold upper/lower), +n (start at n+1) |
| units |
unit converter |
| wait |
waits until all processes initiated with ‘&’ have finished |
| wc |
word count -> lines, words, bytes |
