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"egzact" Examples

Enumerate all the possible parent domains from the sub domain.

Command: stairr

$ echo hoge.huga.pre.cure.example.com | stairr fs=.
com
example.com
cure.example.com
pre.cure.example.com
huga.pre.cure.example.com
hoge.huga.pre.cure.example.com

Enumerate all the possible parent directories from the sub directory.

Command: stairl

$ pwd | stairl fs=/
/usr
/usr/local
/usr/local/bin

Enumerate all the possible FQDN

Command: stairr stairl

$ echo aaa.bbb.ccc.example.com/a/b/c/d | stairr fs=. | stairl fs=/
com
com/a
com/a/b
com/a/b/c
com/a/b/c/d
example.com
example.com/a
example.com/a/b
example.com/a/b/c
example.com/a/b/c/d
ccc.example.com
ccc.example.com/a
ccc.example.com/a/b
ccc.example.com/a/b/c
ccc.example.com/a/b/c/d
bbb.ccc.example.com
bbb.ccc.example.com/a
bbb.ccc.example.com/a/b
bbb.ccc.example.com/a/b/c
bbb.ccc.example.com/a/b/c/d
aaa.bbb.ccc.example.com
aaa.bbb.ccc.example.com/a
aaa.bbb.ccc.example.com/a/b
aaa.bbb.ccc.example.com/a/b/c
aaa.bbb.ccc.example.com/a/b/c/d

Enumerate all the that ... that parts from the word sequence .

Command: stairr stairl

stairl | stairr generates all the sublists from the input.

$ echo "That that is is that that is not is not is that it it is" | stairl | stairr | grep -o "that.*that" | sort | uniq
that is is that
that is is that that
that is is that that is not is not is that
that is not is not is that
that that
that that is not is not is that

Split the file into 17 indivisual files.

Command: slit

$ seq $(awk 'END{print NR}' mytext) | slit 17 | awk '{print "sed -n "$1","$NF"p mytext > mytext."NR}'
sed -n 1,2p mytext > mytext.1
sed -n 3,4p mytext > mytext.2
sed -n 5,6p mytext > mytext.3
sed -n 7,8p mytext > mytext.4
sed -n 9,10p mytext > mytext.5
sed -n 11,12p mytext > mytext.6
sed -n 13,14p mytext > mytext.7
sed -n 15,15p mytext > mytext.8
sed -n 16,16p mytext > mytext.9
sed -n 17,17p mytext > mytext.10
sed -n 18,18p mytext > mytext.11
sed -n 19,19p mytext > mytext.12
sed -n 20,20p mytext > mytext.13
sed -n 21,21p mytext > mytext.14
sed -n 22,22p mytext > mytext.15
sed -n 23,23p mytext > mytext.16
sed -n 24,24p mytext > mytext.17

# Execute
$ seq $(awk 'END{print NR}' mytext) | slit 17 | awk '{print "sed -n "$1","$NF"p mytext > mytext."NR}' | sh

Generate Bi-gram from the poem.

Command: conv

$ echo "If a man understands a poem, he shall have troubles." | conv 2
If a
a man
man understands
understands a
a poem,
poem, he
he shall
shall have
have troubles.

Create a zip file nested 100 times.

Command: conv mirror addl

$ echo file {1..100}.zip | conv 2 | mirror | addl "zip "
zip 1.zip file
zip 2.zip 1.zip
zip 3.zip 2.zip
zip 4.zip 3.zip
zip 5.zip 4.zip
zip 6.zip 5.zip
zip 7.zip 6.zip
zip 8.zip 7.zip
zip 9.zip 8.zip
zip 10.zip 9.zip
...

# Execute
$ echo file {1..100}.zip | conv 2 | mirror | addl "zip " | sh

$ unzip -Z -2 100.zip
99.zip

Calculate the approximation of Napier's Constant

Command: flat stairl wrap addl

$ seq 10 | flat | stairl ofs="*" | flat | wrap ofs="+" '1/(*)' | addl "1+" | bc -l
2.71828180114638447967

Calculate the approximation of PI

Command: addr mirror flat nestr wrap

$ seq 1 2 50 | nl | awk '$1=$1"^2/"' | addr '+' | mirror | flat | addr ' 1' | nestr '(*)' | wrap ifs="_" '(4/ *)' | bc -l
3.14159265358979323651

Generate too nexted DOM element

Command: nestr

$ echo {1..10} | nestr "<p>*</p>"
<p> 1 <p> 2 <p> 3 <p> 4 <p> 5 <p> 6 <p> 7 <p> 8 <p> 9 <p> 10 </p> </p> </p> </p> </p> </p> </p> </p> </p> </p>

Generate too nexted JSON element

Command: wrap addr nestr

jq command is necessary.

$ echo A B C D E F | wrap '"*":' | addr "\"G\"" | nestr "{*}" | jq .
{
  "A": {
    "B": {
      "C": {
        "D": {
          "E": {
            "F": "G"
          }
        }
      }
    }
  }
}

Easily create the table DOM element from the space separated input.

Command: wrap flat addt addb

$ COL=3
$ echo A B C D E F G H | wrap '<td>*</td>' | flat $COL | wrap fs=_ '<tr>*</tr>' | addt '<table border=1>' | addb '</table>'
<table border=1>
<tr><td>A</td> <td>B</td> <td>C</td></tr>
<tr><td>D</td> <td>E</td> <td>F</td></tr>
<tr><td>G</td> <td>H</td></tr>
</table>