Replace slash in to empty in bash
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0
Let's suppose I have this results:
CMD_VAL = 'test/'
echo $CMD_VAL
=> test/
echo "$CMD_VAL"|sed 's#/##g'
=>test
but,
PRO_VAL = "$CMD_VAL"|sed 's#/##g'
echo $PRO_VAL
this returns
=> "test/ is a directory"
How should it need to change in order to get the "test" into a variable as a string?
bash macos resx slash
edited Nov 15 '18 at 16:09
chepner
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
|
show 1 more comment
0
Let's suppose I have this results:
CMD_VAL = 'test/'
echo $CMD_VAL
=> test/
echo "$CMD_VAL"|sed 's#/##g'
=>test
but,
PRO_VAL = "$CMD_VAL"|sed 's#/##g'
echo $PRO_VAL
this returns
=> "test/ is a directory"
How should it need to change in order to get the "test" into a variable as a string?
bash macos resx slash
edited Nov 15 '18 at 16:09
chepner
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
1
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
You are getting what appears to be an error message in trying to runtest/as a command, not the contents ofPRO_VAL(which remains empty, so the "output" ofecho $PRO_VALappears after the error message.sednever actually produces any output, as it had no input.)
– chepner
Nov 15 '18 at 16:11
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21
|
show 1 more comment
0
0
0
Let's suppose I have this results:
CMD_VAL = 'test/'
echo $CMD_VAL
=> test/
echo "$CMD_VAL"|sed 's#/##g'
=>test
but,
PRO_VAL = "$CMD_VAL"|sed 's#/##g'
echo $PRO_VAL
this returns
=> "test/ is a directory"
How should it need to change in order to get the "test" into a variable as a string?
bash macos resx slash
edited Nov 15 '18 at 16:09
chepner
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
Let's suppose I have this results:
CMD_VAL = 'test/'
echo $CMD_VAL
=> test/
echo "$CMD_VAL"|sed 's#/##g'
=>test
but,
PRO_VAL = "$CMD_VAL"|sed 's#/##g'
echo $PRO_VAL
this returns
=> "test/ is a directory"
How should it need to change in order to get the "test" into a variable as a string?
bash macos resx slash
bash macos resx slash
edited Nov 15 '18 at 16:09
chepner
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
edited Nov 15 '18 at 16:09
chepner
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
edited Nov 15 '18 at 16:09
chepner
263k36253345
edited Nov 15 '18 at 16:09
chepner
263k36253345
edited Nov 15 '18 at 16:09
chepner
263k36253345
263k36253345
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
asked Nov 15 '18 at 16:05
Hiranya KavishaniHiranya Kavishani
72
72
1
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
You are getting what appears to be an error message in trying to runtest/as a command, not the contents ofPRO_VAL(which remains empty, so the "output" ofecho $PRO_VALappears after the error message.sednever actually produces any output, as it had no input.)
– chepner
Nov 15 '18 at 16:11
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21
|
show 1 more comment
1
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
You are getting what appears to be an error message in trying to runtest/as a command, not the contents ofPRO_VAL(which remains empty, so the "output" ofecho $PRO_VALappears after the error message.sednever actually produces any output, as it had no input.)
– chepner
Nov 15 '18 at 16:11
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21
1
1
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
You are getting what appears to be an error message in trying to run
test/ as a command, not the contents of PRO_VAL (which remains empty, so the "output" of echo $PRO_VAL appears after the error message. sed never actually produces any output, as it had no input.)– chepner
Nov 15 '18 at 16:11
You are getting what appears to be an error message in trying to run
test/ as a command, not the contents of PRO_VAL (which remains empty, so the "output" of echo $PRO_VAL appears after the error message. sed never actually produces any output, as it had no input.)– chepner
Nov 15 '18 at 16:11
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21
|
show 1 more comment
2 Answers
2
active
oldest
votes
0
PRO_VAL=$(echo $CMD_VAL|sed 's#/##g')
you need to echo first, "$CMD_VAL"|sed 's#/##g" will be run $CMD_VAL and pipe to sed,it's not correct.
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
Please always double-quote variable references (e.g.echo "$CMD_VAL"), to prevent weird parsing under some circumstances.
– Gordon Davisson
Nov 15 '18 at 18:51
add a comment |
4
No need to spawn an external process. c.f. this cheat-sheet for a guide on things like using the interpreter's built-in string processing tools.
$: CMD_VAL='test/' # no spaces...
$: CMD_VAL=$CMD_VAL%/ # strip the training slash
$: echo "$CMD_VAL"
test
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
1
Removing all slashes is more complicated, but can be done:"$CMD_VAL////". To explain it: the first//means "replace all occurrences of", then/is an escaped forward slash (escaped since/would otherwise be a delimiter), then/is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!
– Gordon Davisson
Nov 15 '18 at 18:55
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
PRO_VAL=$(echo $CMD_VAL|sed 's#/##g')
you need to echo first, "$CMD_VAL"|sed 's#/##g" will be run $CMD_VAL and pipe to sed,it's not correct.
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
Please always double-quote variable references (e.g.echo "$CMD_VAL"), to prevent weird parsing under some circumstances.
– Gordon Davisson
Nov 15 '18 at 18:51
add a comment |
0
PRO_VAL=$(echo $CMD_VAL|sed 's#/##g')
you need to echo first, "$CMD_VAL"|sed 's#/##g" will be run $CMD_VAL and pipe to sed,it's not correct.
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
Please always double-quote variable references (e.g.echo "$CMD_VAL"), to prevent weird parsing under some circumstances.
– Gordon Davisson
Nov 15 '18 at 18:51
add a comment |
0
0
0
PRO_VAL=$(echo $CMD_VAL|sed 's#/##g')
you need to echo first, "$CMD_VAL"|sed 's#/##g" will be run $CMD_VAL and pipe to sed,it's not correct.
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
PRO_VAL=$(echo $CMD_VAL|sed 's#/##g')
you need to echo first, "$CMD_VAL"|sed 's#/##g" will be run $CMD_VAL and pipe to sed,it's not correct.
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
answered Nov 15 '18 at 16:14
3h1Nh7YX243h1Nh7YX24
312
312
Please always double-quote variable references (e.g.echo "$CMD_VAL"), to prevent weird parsing under some circumstances.
– Gordon Davisson
Nov 15 '18 at 18:51
add a comment |
Please always double-quote variable references (e.g.echo "$CMD_VAL"), to prevent weird parsing under some circumstances.
– Gordon Davisson
Nov 15 '18 at 18:51
Please always double-quote variable references (e.g.
echo "$CMD_VAL"), to prevent weird parsing under some circumstances.– Gordon Davisson
Nov 15 '18 at 18:51
Please always double-quote variable references (e.g.
echo "$CMD_VAL"), to prevent weird parsing under some circumstances.– Gordon Davisson
Nov 15 '18 at 18:51
add a comment |
4
No need to spawn an external process. c.f. this cheat-sheet for a guide on things like using the interpreter's built-in string processing tools.
$: CMD_VAL='test/' # no spaces...
$: CMD_VAL=$CMD_VAL%/ # strip the training slash
$: echo "$CMD_VAL"
test
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
1
Removing all slashes is more complicated, but can be done:"$CMD_VAL////". To explain it: the first//means "replace all occurrences of", then/is an escaped forward slash (escaped since/would otherwise be a delimiter), then/is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!
– Gordon Davisson
Nov 15 '18 at 18:55
add a comment |
4
No need to spawn an external process. c.f. this cheat-sheet for a guide on things like using the interpreter's built-in string processing tools.
$: CMD_VAL='test/' # no spaces...
$: CMD_VAL=$CMD_VAL%/ # strip the training slash
$: echo "$CMD_VAL"
test
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
1
Removing all slashes is more complicated, but can be done:"$CMD_VAL////". To explain it: the first//means "replace all occurrences of", then/is an escaped forward slash (escaped since/would otherwise be a delimiter), then/is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!
– Gordon Davisson
Nov 15 '18 at 18:55
add a comment |
4
4
4
No need to spawn an external process. c.f. this cheat-sheet for a guide on things like using the interpreter's built-in string processing tools.
$: CMD_VAL='test/' # no spaces...
$: CMD_VAL=$CMD_VAL%/ # strip the training slash
$: echo "$CMD_VAL"
test
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
No need to spawn an external process. c.f. this cheat-sheet for a guide on things like using the interpreter's built-in string processing tools.
$: CMD_VAL='test/' # no spaces...
$: CMD_VAL=$CMD_VAL%/ # strip the training slash
$: echo "$CMD_VAL"
test
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
answered Nov 15 '18 at 16:15
Paul HodgesPaul Hodges
4,0711524
4,0711524
1
Removing all slashes is more complicated, but can be done:"$CMD_VAL////". To explain it: the first//means "replace all occurrences of", then/is an escaped forward slash (escaped since/would otherwise be a delimiter), then/is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!
– Gordon Davisson
Nov 15 '18 at 18:55
add a comment |
1
Removing all slashes is more complicated, but can be done:"$CMD_VAL////". To explain it: the first//means "replace all occurrences of", then/is an escaped forward slash (escaped since/would otherwise be a delimiter), then/is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!
– Gordon Davisson
Nov 15 '18 at 18:55
1
1
Removing all slashes is more complicated, but can be done:
"$CMD_VAL////". To explain it: the first // means "replace all occurrences of", then / is an escaped forward slash (escaped since / would otherwise be a delimiter), then / is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!– Gordon Davisson
Nov 15 '18 at 18:55
Removing all slashes is more complicated, but can be done:
"$CMD_VAL////". To explain it: the first // means "replace all occurrences of", then / is an escaped forward slash (escaped since / would otherwise be a delimiter), then / is the delimiter between the pattern and its replacement, and then there's a blank replacement string. Whee!– Gordon Davisson
Nov 15 '18 at 18:55
add a comment |
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1
Your Bash syntax is all wrong. Please post the actual commands you're running.
– ruakh
Nov 15 '18 at 16:09
You are getting what appears to be an error message in trying to run
test/as a command, not the contents ofPRO_VAL(which remains empty, so the "output" ofecho $PRO_VALappears after the error message.sednever actually produces any output, as it had no input.)– chepner
Nov 15 '18 at 16:11
if [ "$IS_BUILD_COMMAND" = true ] && [ "$CMD_PRO_NAME_VAL" != "" ] && [ "$MICRO_GW_PROJECT_DIR" != "" ]; then echo $CMD_PRO_NAME_VAL echo "$CMD_PRO_NAME_VAL"|sed 's#/##g'
– Hiranya Kavishani
Nov 15 '18 at 16:12
here $CMD_PRO_NAME_VAL = test/ and echo "$CMD_PRO_NAME_VAL"|sed 's#/##g' I got it as "test". I want to take it to variable and print
– Hiranya Kavishani
Nov 15 '18 at 16:13
@chepner yes.how should I fix it?
– Hiranya Kavishani
Nov 15 '18 at 16:21