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README.md - added new one-liners

- signed-off-by: trimstray <trimstray@gmail.com>
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trimstray il y a 6 ans
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1 fichiers modifiés avec 66 ajouts et 0 suppressions
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      README.md

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README.md Voir le fichier

@@ -309,6 +309,7 @@ disown -a && exit

```bash
kill -9 $$
unset HISTFILE && exit
```

###### Perform a branching conditional
@@ -371,6 +372,13 @@ rename 'y/A-Z/a-z/' *
printf "%`tput cols`s" | tr ' ' '#'
```

###### Show shell history without line numbers

```bash
history | cut -c 8-
fc -l -n 1 | sed 's/^\s*//'
```

___

##### Tool: [mount](https://en.wikipedia.org/wiki/Mount_(Unix))
@@ -438,6 +446,38 @@ find / -type f -size +20M
find -type f -exec md5sum '{}' ';' | sort | uniq --all-repeated=separate -w 33
```

###### Change permission only for files

```bash
cd /var/www/site && find . -type f -exec chmod 766 {} \;
cd /var/www/site && find . -type f -exec chmod 664 {} +
```

###### Change permission only for directories

```bash
cd /var/www/site && find . -type d -exec chmod g+x {} \;
cd /var/www/site && find . -type d -exec chmod g+rwx {} +
```

###### Find files and directories for specific user

```bash
find . -user <username> -print
```

###### Find files and directories for all without specific user

```bash
find . \!-user <username> -print
```

###### Delete older files than 60 days

```bash
find . -type f -mtime +60 -delete
```

___

##### Tool: [top](https://en.wikipedia.org/wiki/Top_(software))
@@ -656,6 +696,20 @@ EOF
))
```

###### Convert DER to PEM

```bash
( _fd_der="cert.crt" ; _fd_pem="cert.pem" ; \
openssl x509 -in ${_fd_der} -inform der -outform pem -out ${_fd_pem} )
```

###### Convert PEM to DER

```bash
( _fd_der="cert.crt" ; _fd_pem="cert.pem" ; \
openssl x509 -in ${_fd_pem} -outform der -out ${_fd_der} )
```

###### Checking whether the private key and the certificate match

```bash
@@ -1201,3 +1255,15 @@ grep . filename > newfilename
```bash
grep -vE '(error|critical|warning)' filename
```

###### Show data from file without comments

```bash
grep -v ^[[:space:]]*# filename
```

###### Show data from file without comments and new lines

```bash
egrep -v '#|^$' filename
```

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