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Bash Script read -p
Problem with script substitution when running scriptError message 'source: not found' when running a script.sh file on Startup Applications isn't executedProblem with input from simple script that copies a file to a different directorybash script to run a second command with select output from first command as variableWant to write a bash script to automate creating program filesRead input for bash scriptexit a bash command in a script without exiting the scriptProper method for storing user input in bash scriptsHow to pass a value to read input before being prompted?
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty margin-bottom:0;
I'm pretty sure the answer is no but I thought I'd ask anyway. I want to have a bash script with a user input that automatically proceeds after the desired amount of characters are entered, in this case 3.
So when the user enters 123 or abc, the script moves on with that variable rather than waiting for an 'Enter'.
read -p 'User Input: ' userInput
Is this possible?
bash scripts
edited 7 hours ago
terdon♦
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asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
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Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm pretty sure the answer is no but I thought I'd ask anyway. I want to have a bash script with a user input that automatically proceeds after the desired amount of characters are entered, in this case 3.
So when the user enters 123 or abc, the script moves on with that variable rather than waiting for an 'Enter'.
read -p 'User Input: ' userInput
Is this possible?
bash scripts
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
I'm pretty sure the answer is no but I thought I'd ask anyway. I want to have a bash script with a user input that automatically proceeds after the desired amount of characters are entered, in this case 3.
So when the user enters 123 or abc, the script moves on with that variable rather than waiting for an 'Enter'.
read -p 'User Input: ' userInput
Is this possible?
bash scripts
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
I'm pretty sure the answer is no but I thought I'd ask anyway. I want to have a bash script with a user input that automatically proceeds after the desired amount of characters are entered, in this case 3.
So when the user enters 123 or abc, the script moves on with that variable rather than waiting for an 'Enter'.
read -p 'User Input: ' userInput
Is this possible?
bash scripts
bash scripts
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
edited 7 hours ago
terdon♦
72.6k13 gold badges148 silver badges233 bronze badges
72.6k13 gold badges148 silver badges233 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
asked 8 hours ago
Ashton WattsAshton Watts
132 bronze badges
132 bronze badges
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ashton Watts is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
In bash, you can add -n 3 or -N 3 depending on the exact behavior you require. From help read:
-n nchars return after reading NCHARS characters rather than waiting
for a newline, but honor a delimiter if fewer than
NCHARS characters are read before the delimiter
-N nchars return only after reading exactly NCHARS characters, unless
EOF is encountered or read times out, ignoring any
delimiter
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
@AshtonWatts are you sure you are usingbash- notsh(ordash)?
– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
add a comment |
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1 Answer
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1 Answer
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oldest
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In bash, you can add -n 3 or -N 3 depending on the exact behavior you require. From help read:
-n nchars return after reading NCHARS characters rather than waiting
for a newline, but honor a delimiter if fewer than
NCHARS characters are read before the delimiter
-N nchars return only after reading exactly NCHARS characters, unless
EOF is encountered or read times out, ignoring any
delimiter
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
@AshtonWatts are you sure you are usingbash- notsh(ordash)?
– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
add a comment |
In bash, you can add -n 3 or -N 3 depending on the exact behavior you require. From help read:
-n nchars return after reading NCHARS characters rather than waiting
for a newline, but honor a delimiter if fewer than
NCHARS characters are read before the delimiter
-N nchars return only after reading exactly NCHARS characters, unless
EOF is encountered or read times out, ignoring any
delimiter
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
@AshtonWatts are you sure you are usingbash- notsh(ordash)?
– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
add a comment |
In bash, you can add -n 3 or -N 3 depending on the exact behavior you require. From help read:
-n nchars return after reading NCHARS characters rather than waiting
for a newline, but honor a delimiter if fewer than
NCHARS characters are read before the delimiter
-N nchars return only after reading exactly NCHARS characters, unless
EOF is encountered or read times out, ignoring any
delimiter
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
In bash, you can add -n 3 or -N 3 depending on the exact behavior you require. From help read:
-n nchars return after reading NCHARS characters rather than waiting
for a newline, but honor a delimiter if fewer than
NCHARS characters are read before the delimiter
-N nchars return only after reading exactly NCHARS characters, unless
EOF is encountered or read times out, ignoring any
delimiter
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
answered 8 hours ago
steeldriversteeldriver
76.8k12 gold badges127 silver badges205 bronze badges
76.8k12 gold badges127 silver badges205 bronze badges
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
@AshtonWatts are you sure you are usingbash- notsh(ordash)?
– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
add a comment |
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
@AshtonWatts are you sure you are usingbash- notsh(ordash)?
– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
If I try adding -N 3 or -n 3 it says illegal option -n.
– Ashton Watts
5 hours ago
1
1
@AshtonWatts are you sure you are using
bash - not sh (or dash)?– steeldriver
5 hours ago
@AshtonWatts are you sure you are using
bash - not sh (or dash)?– steeldriver
5 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
Yeah the problem was that I wasn't running it as bash. Working fine now.
– Ashton Watts
4 hours ago
add a comment |
Ashton Watts is a new contributor. Be nice, and check out our Code of Conduct.
Ashton Watts is a new contributor. Be nice, and check out our Code of Conduct.
Ashton Watts is a new contributor. Be nice, and check out our Code of Conduct.
Ashton Watts is a new contributor. Be nice, and check out our Code of Conduct.
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