formatting

This commit is contained in:
Malin Freeborn 2020-11-15 21:49:17 +01:00
parent a32200be2f
commit c10380bb34
3 changed files with 20 additions and 6 deletions

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@ -50,7 +50,7 @@ Compressing all Latex Files in /home/.
> sudo find ~ -maxdepth 4 -name "*.txt" | xargs tar cvf latex-bundle.tar.gz
## `zip
## `zip`
Install `zip`.

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@ -22,7 +22,7 @@ Regular expression characters include:
As a result, grep cannot read these characters as literal characters unless they are escaped. E.g.
> grep wtf\? log.txt
> grep wtf\\? log.txt
... will search the string 'wtf?' in the file log.txt. Another version is egrep (now used with 'grep -e') which uses more characters as special characters, or fgrep, which treats all characters as literal strings.
@ -46,10 +46,20 @@ Export this to the entire system using:
> export colour=blue
# Search commands
# Search for Programs
Search for commands relevant to `cat`.
> apropos cat
Show files used in the `cat` program.
> whereis cat
Show *which* file is the actual code which runs when you type `cat`:
> which cat
# Working with Text
Convert every tab to ten spaces.
@ -76,9 +86,13 @@ The sort function arranges lines alphabetically. Use -r to reverse and -n to so
# Sed
> sed -i s/hey/hoi/g greetings.txt
Change all examples of hey to hoi in greetings and show that output (does not change file).
Edit all examples of hey to hoi in greetings and print that to the file.
> sed 's/hey/hoi/g greetings.txt'
Change each example of 'cat' to 'dog' in the file 'animals.md'.
> sed 's/cat/dog/g' animals.md
# Measurement

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@ -28,7 +28,7 @@ Download and extract the root filesystem (as root, not via sudo):
Move boot files to the first partition:
> mv root/boot/* boot
> mv root/boot/\* boot
> Unmount the two partitions:
> umount boot root