Script that also create a script, how can i save it?

Shell Programming and Scripting
1

say i have a script that says

cat > resultofsample.sh
#!/bin/bash
codes

but how can i exit it from here and save it?

2

in vi mode, type the fllowing:

:wq!
3

Type CTRL+D to signal EOF.

4

Press Ctrl+d to save and exit. This should be done in the new line i.e line after the word codes

cat > resultofsample.sh
#!/bin/bash
codes
Ctrl+d
5

seems not working. i'm stuck to an empty shell without a prompt.

lets say i have this whole script.

the script must create a script named resultofsample.sh
which supossedly have these codes

it did create the script but its empty.

6

Did you type 'crtl + d' or did you press 'D' key while holding down the 'Ctrl' key ? It should be the latter.

7

Im not sure how to execute Ctrl + d within a script. But could try as below

#!/bin/bash
ls -l
#cat > resultofsample.sh
echo "#!/bin/bash" >resultofsample.sh
echo "codes" >>resultofsample.sh
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9

thanks all. thanks mike. it now works :smiley:

10

Instead of using multiple echo's, try using here document.

cat > resultofsample.sh <<EOF
#!/bin/bash
# codes
EOF
1 Like