testcase.md

Subshell

[x] $ (printenv HOME) (leu leu) && echo shekcon

bash$

bash: syntax error near unexpected token `('

intek-sh$

intek-sh: syntax error near unexpected token `('

[x] $ (echo world || echo haha

bash$

bash: syntax error

intek-sh$

intek-sh: parse token error "("

[x] $ (echo world) || echo haha

bash$

world

intek-sh$

world

[x] $ echo (hello world hehe || echo haha

bash$

bash: syntax error near unexpected token \`hello'

intek-sh$

intek-sh: parse token error "("

[x] $ echo hello world) hehe || echo haha

bash$

bash: syntax error near unexpected token `)'

intek-sh$

intek-sh: syntax error near unexpected token `)'

[x] $ echo (hello world) hehe

bash

bash: syntax error near unexpected token `hello'

intek-sh$

intek-sh: syntax error near unexpected token `('

[x] $ cd .. && pwd && (cd .. && pwd && export LOGNAME=shekcon && printenv LOGNAME) && pwd && printenv LOGNAME

bash

/home/shekcon
/home
shekcon
/home/shekcon
shekcon

intek-sh$

/home/shekcon
/home
shekcon
/home/shekcon
shekcon

[x] $ (export HOME=INTEK LSANG=shekcon && printenv HOME && printenv LSANG ) && printenv HOME && printenv LSANG

bash$

INTEK
shekcon
/home/shekcon

intek-sh$

INTEK
shekcon
/home/shekcon

Syntax shell

[x] $ echo haha || echo `"` haha

bash$

haha

intek-sh$

haha

[x] $ echo haha && echo `"`

bash$

haha
bash: command substitution: systax error \`"'

intek-sh$

haha
intek-sh: parse token error `"'

[x] $ echo haha && echo `"` hehe

bash$

haha
bash: command substitution: systax error \`"'
hehe

intek-sh$

haha
intek-sh: parse token error `"'
hehe

[x] $ (echo haha && echo `"` hehe) && echo haha

bash$

haha
bash: command substitution: systax error \`"'
hehe
haha

intek-sh$

haha
intek-sh: parse token error """
hehe
haha

Test case

shekcon@Intek:$ echo && | echo a bash: syntax error near unexpected token |' shekcon@Intek:~$ echo && || echo a bash: syntax error near unexpected token ||' shekcon@Intek:$ echo | && echo a bash: syntax error near unexpected token &&' shekcon@Intek:~$ && echo haha bash: syntax error near unexpected token &&' shekcon@Intek:$ | echo haha bash: syntax error near unexpected token |' shekcon@Intek:~$ || echo haha bash: syntax error near unexpected token ||' shekcon@Intek:$ echo > lsang && || haha bash: syntax error near unexpected token ||' shekcon@Intek:~$ echo > lsang < && haha bash: syntax error near unexpected token &&' shekcon@Intek:$ echo > lsang < > && haha bash: syntax error near unexpected token >' shekcon@Intek:~$ echo > lsang < > haha && haha bash: syntax error near unexpected token >' shekcon@Intek:$ echo > lsang < > haha && haha < bash: syntax error near unexpected token >' shekcon@Intek:~$ < echo > lsang && echo haha bash: echo: No such file or directory shekcon@Intek:~$ < echo > lsang > && echo haha bash: syntax error near unexpected token &&' shekcon@Intek:~$ echo "hello world" >> haha < ls.txt && echo hello world ||

echo haha >>lsang.txt | grep a bash: ls.txt: No such file or directory shekcon@Intek:$ cd De Deployment/ Desktop/
shekcon@Intek:$ cd Deployment/Test/ shekcon@Intek:~/Deployment/Test$ echo "hello world" >> haha < ls.txt && echo hello world || echo haha >>lsang.txt | grep a

Command 'hello' not found, but can be installed with:

sudo apt install hello
sudo apt install hello-traditional

shekcon@Intek:~/Deployment/Test$ echo "hello world" && echo hdawd world || echo haha hello world hdawd: command not found

shekcon@Intek:/Deployment/Test$ < haha echo > bash: syntax error near unexpected token newline' shekcon@Intek:~/Deployment/Test$ shekcon@Intek:~/Deployment/Test$ < haha echo > bash: syntax error near unexpected token newline' shekcon@Intek:/Deployment/Test$ < haha echo > || bash: syntax error near unexpected token `||' shekcon@Intek:~/Deployment/Test$ < haha echo > dawd |

| bash: syntax error near unexpected token `|' ls > ls.out | grep a | grep b ls -la >> ls.out < ls.in ls > ls.out | grep a || echo haha < ls.in ls > ls.out | grep a && echo haha < ls.in ls > ls.out | grep ls < ls.out < file > new ls | grep a new ls | grep a echo ${dawdaw } || echo haha bash: ${dawdaw }: bad substitution < ls > haha | grep a